Croatia: WHO and UNICEF estimates of immunization coverage: 2022 revision

July 1, 2023; page 1 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia: WHO and UNICEF estimates of immunization coverage: 2022 revision

BACKGROUND NOTE: Each year WHO and UNICEF jointly review reports submitted by Member immunization and/or campaign or (ii) a sequential schedule of IPV followed by OPV, WHO and
States regarding national immunization coverage, finalized survey reports as well as data from the UNICEF estimates for IPV1 reflect coverage with at least one routine dose of IPV among infants
published and grey literature. Based on these data, with due consideration to potential biases and the <1 year of age among countries. For countries utilizing IPV containing vaccine use only, i.e., no
views of local experts, WHO and UNICEF attempt to distinguish between situations where the recommended dose of OPV, the WHO and UNICEF estimate for IPV1 corresponds to coverage
available empirical data accurately reflect immunization system performance and those where the data for the 1st dose of IPV.
are likely to be compromised and present a misleading view of immunization coverage while jointly Production of IPV coverage estimates, which begins in 2015, results in no change of the
estimating the most likely coverage levels for each country. estimated coverage levels for the 3rd dose of polio (Pol3). For countries recommending routine
immunization with a primary series of three doses of IPV alone, WHO and UNICEF estimated
WHO and UNICEF estimates are country-specific; that is to say, each country’s data are reviewed Pol3 coverage is equivalent to estimated coverage with three doses of IPV. For countries with a
individually, and data are not borrowed from other countries in the absence of data. Estimates are not sequential schedule, estimated Pol3 coverage is based on that for the 3rd dose of polio vaccine
based on ad hoc adjustments to reported data; in some instances empirical data are available from a regardless of vaccine type.
single source, usually the nationally reported coverage data. In cases where no data are available for a MCV1: percentage of surviving infants who received the 1st dose of measles containing vaccine. In
given country/vaccine/year combination, data are considered from earlier and later years and countries where the national schedule recommends the 1st dose of MCV at 12 months or later
interpolated to estimate coverage for the missing year(s). In cases where data sources are mixed and based on the epidemiology of disease in the country, coverage estimates reflect the percentage of
show large variation, an attempt is made to identify the most likely estimate with consideration of the children who received the 1st dose of MCV as recommended.
possible biases in available data. For methods see:
MCV2: percentage of children who received the 2nd dose of measles containing vaccine according to
*Burton et al. 2009. WHO and UNICEF estimates of national infant immunization coverage: methods the nationally recommended schedule.
and processes.
RCV1: percentage of surviving infants who received the 1st dose of rubella containing vaccine. Co
*Burton et al. 2012. A formal representation of the WHO and UNICEF estimates of national
verage estimates are based on WHO and UNICEF estimates of coverage for the dose of measles
immunization coverage: a computational logic approach.
containing vaccine that corresponds to the first measles-rubella combination vaccine. Nationally
*Brown et al. 2013. An introduction to the grade of confidence used to characterize uncertainty around
reported coverage of RCV is not taken into consideration nor are the data represented in the
the WHO and UNICEF estimates of national immunization coverage.
accompanying graph and data table.
HepBB: percentage of births which received a dose of hepatitis B vaccine within 24 hours of delivery.
DATA SOURCES.
Estimates of hepatitis B birth dose coverage are produced only for countries with a universal
ADMINISTRATIVE coverage: Reported by national authorities and based on aggregated birth dose policy. Estimates are not produced for countries that recommend a birth dose to
administrative reports from health service providers on the number of vaccinations administered infants born to HepB virus-infected mothers only or where there is insufficient information to
during a given period (numerator data) and reported target population data (denominator data). determine whether vaccination is within 24 hours of birth.
May be biased by inaccurate numerator and/or denominator data. HepB3: percentage of surviving infants who received the 3rd dose of hepatitis B containing vaccine
OFFICIAL coverage: Estimated coverage reported by national authorities that reflects their following the birth dose.
assessment of the most likely coverage based on any combination of administrative coverage, Hib3: percentage of surviving infants who received the 3rd dose of Haemophilus influenzae type b
survey-based estimates or other data sources or adjustments. Approaches to determine containing vaccine.
OFFICIAL coverage may differ across countries.
RotaC: percentage of surviving infants who received the final recommended dose of rotavirus vaccine,
SURVEY coverage: Based on estimated coverage from population-based household surveys among which can be either the 2nd or the 3rd dose depending on the vaccine.
children aged 12-23 months or 24-35 months following a review of survey methods and results. PcV3: percentage of surviving infants who received the 3rd dose of pneumococcal conjugate vaccine.
Information is based on the combination of vaccination history from documented evidence or In countries where the national schedule recommends two doses during infancy and a booster
caregiver recall. Survey results are considered for the appropriate birth cohort based on the dose at 12 months or later based on the epidemiology of disease in the country, coverage
period of data collection. estimates may reflect the percentage of surviving infants who received two doses of PcV prior to
the 1st birthday.
ABBREVIATIONS YFV: percentage of surviving infants who received one dose of yellow fever vaccine in countries where
BCG: percentage of births who received one dose of Bacillus Calmette Guerin vaccine. YFV is part of the national immunization schedule for children or is recommended in at risk
areas; coverage estimates are annualized for the entire cohort of surviving infants.
DTP1 / DTP3: percentage of surviving infants who received the 1st / 3rd dose, respectively, of
diphtheria and tetanus toxoid with pertussis containing vaccine. Disclaimer: All reasonable precautions have been taken by the World Health Organization and
Pol3: percentage of surviving infants who received the 3rd dose of polio containing vaccine. May be United Nations Children’s Fund to verify the information contained in this publication. However,
either oral or inactivated polio vaccine. the published material is being distributed without warranty of any kind, either expressed or
implied. The responsibility for the interpretation and use of the material lies with the reader. In
IPV1: percentage of surviving infants who received at least one dose of inactivated polio vaccine. In
no event shall the World Health Organization or United Nations Children’s Fund be liable for
countries utilizing an immunization schedule recommending either (i) a primary series of three
damages arising from its use.
doses of oral polio vaccine (OPV) plus at least one dose of IPV where OPV is included in routine

July 1, 2023; page 2 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - BCG
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. Programme reports two months vaccine stockout at
national level. GoC=R+ D+
2015: Estimate informed by reported data. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 99 99 99 98 98 99 98 98 98 98 97 97
Estimate GoC •• •• •• •• •• •• •• •• •• •• •• ••
Official 99 99 99 98 98 99 98 98 NA 98 97 97
Administrative 99 99 99 98 98 99 98 98 98 98 97 97
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 3 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - DTP1
Description:

2022: Estimate based on extrapolation from data reported by national government. No nationally
representative household survey within the last 5 years. WHO and UNICEF recommend
a high-quality survey to confirm reported levels of coverage. GoC=No accepted empirical
data
2021: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2020: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2019: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2018: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2017: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2016: Estimate based on extrapolation from data reported by national government. GoC=No
accepted empirical data
2015: Estimate based on extrapolation from data reported by national government. Programme
has not reported coverage levels but has reported national level hexavalent vaccine stock-
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 out for 11 months during 2015. As such coverage is likely lower than estimated here.
Estimate 97 98 98 98 98 98 98 98 98 98 98 98 GoC=No accepted empirical data
Estimate GoC •• • •• • • • • • • • • •
2014: Estimate based on extrapolation from data reported by national government. GoC=No
Official 97 NA 98 NA NA NA NA NA NA NA NA NA
Administrative NA NA NA NA NA NA NA NA NA NA NA NA
accepted empirical data
Survey NA NA NA NA NA NA NA NA NA NA NA NA 2013: Estimate informed by reported data. GoC=R+
2012: Estimate informed by interpolation between reported data. GoC=No accepted empirical
The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information data
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
2011: Estimate informed by reported data. GoC=R+
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 4 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - DTP3
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. Estimate challenged by: D-
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. GoC=R+ D+
2015: Estimate informed by reported data. Programme has not reported coverage levels but has
reported national level hexavalent vaccine stockout for 11 months during 2015. As such
coverage is likely lower than estimated here. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 96 96 96 95 94 93 92 93 94 94 92 92
Estimate GoC •• •• •• •• •• •• •• •• •• •• • ••
Official 96 96 96 95 94 93 92 93 NA 94 92 92
Administrative 96 96 96 95 94 93 92 93 94 94 92 92
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 5 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - Pol3
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. GoC=R+ D+
2015: Estimate informed by reported data. Programme has not reported coverage levels but has
reported national level hexavalent vaccine stockout for 11 months during 2015. As such
coverage is likely lower than estimated here. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 96 96 96 95 94 93 92 94 94 94 92 92
Estimate GoC •• •• •• •• •• •• •• •• •• •• •• ••
Official 96 96 96 95 94 93 92 94 NA 94 92 92
Administrative 96 96 96 95 94 93 92 94 94 94 92 92
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 6 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - IPV1
Description:

Estimates for a dose of inactivated polio vaccine (IPV) begin in 2015 following the Global Po-
lio Eradication Initiative’s Polio Eradication and Endgame Strategic Plan: 2013-2018
which recommended at least one full dose or two fractional doses of IPV into routine
immunization schedules as a strategy to mitigate the potential consequences should any
re-emergence of type 2 poliovirus occur following the planned withdrawal of Sabin type
2 strains from oral polio vaccine (OPV).

2022: Estimate based on estimated DTP1 coverage. No nationally representative household

survey within the last 5 years. WHO and UNICEF recommend a high-quality survey to
confirm reported levels of coverage. GoC=No accepted empirical data
2021: Estimate based on estimated DTP1 coverage. GoC=No accepted empirical data
2020: Estimate based on estimated DTP1 coverage. GoC=No accepted empirical data
2019: Estimate based on estimated DTP1 coverage. GoC=No accepted empirical data
2018: Estimate based on estimated DTP1 coverage. GoC=No accepted empirical data
2017: Estimate based on estimated DTP1 coverage. GoC=No accepted empirical data
2016: Estimate is based on estimated DTP1 coverage level. GoC=No accepted empirical data
2015: Estimate is based on estimated DTP1 coverage level. GoC=No accepted empirical data

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate NA NA NA NA 98 98 98 98 98 98 98 98
Estimate GoC NA NA NA NA • • • • • • • •
Official NA NA NA NA NA NA NA NA NA NA NA NA
Administrative NA NA NA NA NA NA NA NA NA NA NA NA
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 7 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - MCV1
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. GoC=R+ D+
2015: Estimate informed by reported data. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 96 95 94 94 93 90 89 93 93 91 89 90
Estimate GoC •• •• •• •• •• •• •• •• •• •• •• ••
Official 96 95 94 94 93 90 89 93 NA 91 89 90
Administrative 96 95 94 94 93 90 89 93 93 91 89 90
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 8 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - MCV2
Description:

Coverage estimates for the second dose of measles containing vaccine are for children by the
nationally recommended age.

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. Estimate challenged by: D-
2015: Estimate informed by reported data. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 98 97 97 97 96 96 95 95 95 91 90 90
Estimate GoC •• •• •• •• •• • •• •• •• •• •• ••
Official 98 97 97 97 96 96 95 95 NA 91 90 90
Administrative 98 97 97 97 96 96 95 95 95 91 90 90
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 9 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - RCV1
Description:

For this revision, coverage estimates for the first dose of rubella containing vaccine are based
on WHO and UNICEF estimates of coverage of measles containing vaccine. Nationally
reported coverage of rubella containing vaccine is not taken into consideration nor are
they represented in the the accompanying graph and data table.

2022: Estimate based on estimated MCV1. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate based on estimated MCV1. GoC=R+ D+
2020: Estimate based on estimated MCV1. GoC=R+ D+
2019: Estimate based on estimated MCV1. GoC=R+ D+
2018: Estimate based on estimated MCV1. GoC=R+ D+
2017: Estimate based on estimated MCV1. GoC=R+ D+
2016: Estimate based on estimated MCV1. GoC=R+ D+
2015: Estimate based on estimated MCV1. GoC=R+ D+
2014: Estimate based on estimated MCV1. GoC=R+ D+
2013: Estimate based on estimated MCV1. GoC=R+ D+
2012: Estimate based on estimated MCV1. GoC=R+ D+
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2011: Estimate based on estimated MCV1. GoC=R+ D+
Estimate 96 95 94 94 93 90 89 93 93 91 89 90
Estimate GoC •• •• •• •• •• •• •• •• •• •• •• ••
Official NA NA NA NA NA NA NA NA NA NA NA NA
Administrative NA NA NA NA NA NA NA NA NA NA NA NA
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 10 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - HepBB
Description:

2014: Estimate informed by extrapolation from reported data. Hepatitis B birth dose removed
from the national immunization schedule after 2014. Programme shifted to use of DTaP-
IPV-Hib-HepB at 2, 4, 6 months after removing monovalent HepB. GoC=No accepted
empirical data
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+ D+
2011: Estimate informed by reported data. GoC=R+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 98 96 98 98 NA NA NA NA NA NA NA NA
Estimate GoC •• •• •• • NA NA NA NA NA NA NA NA
Official 98 96 98 NA NA NA NA NA NA NA NA NA
Administrative NA 96 98 NA NA NA NA NA NA NA NA NA
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 11 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - HepB3
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. Estimate challenged by: D-
2016: Estimate informed by reported data. Estimate challenged by: D-
2015: Estimate informed by reported data. Programme has not reported coverage levels but has
reported national level hexavalent vaccine stockout for 11 months during 2015. As such
coverage is likely lower than estimated here. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+
2011: Estimate informed by reported data. Estimate challenged by: D-

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 96 96 96 95 94 92 92 93 93 91 90 90
Estimate GoC • •• •• •• •• • • •• •• •• •• ••
Official 96 96 96 95 94 92 92 93 NA 91 90 90
Administrative 97 NA 96 95 94 95 94 93 93 91 90 90
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 12 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - Hib3
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Estimate informed by reported data. GoC=R+ D+
2020: Estimate informed by reported data. GoC=R+ D+
2019: Estimate informed by reported administrative data. GoC=R+ D+
2018: Estimate informed by reported data. GoC=R+ D+
2017: Estimate informed by reported data. GoC=R+ D+
2016: Estimate informed by reported data. GoC=R+ D+
2015: Estimate informed by reported administrative data. Programme has not reported coverage
levels but has reported national level hexavalent vaccine stockout for 11 months during
2015. As such coverage is likely lower than estimated here. GoC=R+ D+
2014: Estimate informed by reported data. GoC=R+ D+
2013: Estimate informed by reported data. GoC=R+ D+
2012: Estimate informed by reported data. GoC=R+
2011: Estimate informed by reported data. GoC=R+ D+

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate 96 96 96 95 94 93 92 94 94 93 92 92
Estimate GoC •• •• •• •• •• •• •• •• •• •• •• ••
Official 96 96 96 95 NA 93 92 94 NA 93 92 92
Administrative 96 NA 96 95 94 93 87 94 94 93 92 92
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 13 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - RotaC

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate NA NA NA NA NA NA NA NA NA NA NA NA
Estimate GoC NA NA NA NA NA NA NA NA NA NA NA NA
Official NA NA NA NA NA NA NA NA NA NA NA NA
Administrative NA NA NA NA NA NA NA NA NA NA NA NA
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 14 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia - PcV3
Description:

2022: Estimate informed by reported data. No nationally representative household survey within
the last 5 years. WHO and UNICEF recommend a high-quality survey to confirm re-
ported levels of coverage. GoC=R+ D+
2021: Pneumococcal conjugate vaccine introduced in 2019 and recommended at 2m, 4m and
12m. Reporting began in 2021. Reported coverage reflects coverage achieved at 85 per-
cent of the national target. Estimated coverage reflects coverage achieved in the annual
national target population. Estimate challenged by: R-

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Estimate NA NA NA NA NA NA NA NA NA NA 75 90
Estimate GoC NA NA NA NA NA NA NA NA NA NA • ••
Official NA NA NA NA NA NA NA NA NA NA 88 90
Administrative NA NA NA NA NA NA NA NA NA NA 88 90
Survey NA NA NA NA NA NA NA NA NA NA NA NA

The WHO and UNICEF estimates of national immunization coverage (wuenic) are based on data and information
that are of varying, and, in some instances, unknown quality. Beginning with the 2011 revision we describe
the grade of confidence (GoC) we have in these estimates. As there is no underlying probability model upon
which the estimates are based, we are unable to present classical measures of uncertainty, e.g., confidence
intervals. Moreover, we have chosen not to make subjective estimates of plausibility/certainty ranges around
the coverage. The GoC reflects the degree of empirical support upon which the estimates are based. It is
not a judgment of the quality of data reported by national authorities.

••• Estimate is supported by reported data [R+], coverage recalculated with an independent denominator
from the World Population Prospects: 2022 revision from the UN Population Division (D+), and at
least one supporting survey within 2 years [S+]. While well supported, the estimate still carries a risk
of being wrong.

•• Estimate is supported by at least one data source; [R+], [S+], or [D+]; and no data source, [R-], [D-], or
[S-], challenges the estimate.

• There are no directly supporting data; or data from at least one source; [R-], [D-], [S-]; challenge the estimate.

In all cases these estimates should be used with caution and should be assessed in light
of the objective for which they are being used.

July 1, 2023; page 15 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023
 Croatia: WHO and UNICEF estimates of immunization coverage, 2022 revision

Further information and estimates for previous years are available at:
https://data.unicef.org/topic/child-health/immunization/
https://immunizationdata.who.int/listing.html

July 1, 2023; page 16 WHO and UNICEF estimates of national immunization coverage - next revision available July 15, 2024 data received as of June 26, 2023