Article 1
Article 1
Correspondence: Shu Ping Chuang, Department of Psychiatry, Zuoying Branch of Kaohsiung Armed Forces General Hospital, No. 553, Jiunshiau Road,
Zuoying District, Kaohsiung, 81342, Taiwan, Tel +886-7-5817121#3352, Fax +886-7-5818816, Email xota5139@gmail.com; s86924034@gs.ncku.edu.tw
Purpose: Resilience is viewed as an individual’ positive adaptation and experiences of adversity. The maintenance and recovery of
mental health in people with mental disorder is considered a sign of coping with adverse conditions. The purpose of the present meta-
analysis was to examine the association between resilience and quality of life in individuals with mental disorders.
Methods: Studies were included if research reported measures of association with resilience, as assessed using self-reported resilience
scale and quality of life. A systematic literature search was conducted in PubMed and PsycINFO.
Results: Eight studies involving a total of 1439 patients were included in the meta-analysis. Assuming a random-effects model, the
weighted mean Pearson correlation between resilience and quality of life was r = 0.551 (95% confidence interval [0.370; 0.691], p < 0.001).
This association was moderate, although the heterogeneity among individual effect sizes was substantial (I2 = 93.35%).
Conclusion: Despite substantial heterogeneity across included studies, the findings suggest a strong association between resilience
and quality of life in people with mental disorders. In clinical practice, the promotion of resilience is important to enhance the quality
of life among people with mental illness.
Keywords: resilience, quality of life, mental health
Introduction
In recent years, the concept of resilience has increased importance in the field of mental illness as the process of adapting
positively to an adversity such as illness.1 In this context, resilience is defined as having the potential or the capacity to
maintain or regain mental health or in the context of significant challenges, trauma or adversity. Mental illness commonly
indicated that patients with depression and/or anxiety disorders may suffer significantly with a state of failed or lower levels
of resilience compared to non-affected participants.2,3 Moreover, further studies suggested that high resilience reduced the
risk of suicide in participants with schizophrenia and mood disorders, and had a positive impact on the long-term recovery
in schizophrenia.4–7 A study found that lower levels of resilience were associated with an increased number of depressive
episodes and higher levels of impulsivity in participants with bipolar disorder.8 Resilience is a dynamic and time-specific
process and may vary throughout life.9–13 Resilience plays an important role in the prevention and recovery of psychiatric
disorders;14,15, thus, there is a need to examine resilience in people with mental illness.
    Quality of life is a broad construct developed to evaluate health status, perceived levels of general well-being and
satisfaction in the context of a specific health condition or life as a whole.14 The improvement and maintenance of quality
of life were relevant predictors for remission and recovery in people with schizophrenia.15–17 Past studies have shown
that a higher level of resilience is correlated with better quality of life in individuals with mental illness.18–20 Other
studies found resilience and quality of life to be lower among participants with bipolar disorder compared to the healthy
control group.21,22 Hayas and colleagues (2015)13 found that resilience contributed to helping individuals cope positively
with illness and promote better quality of life and improve recovery. Resilience was related to the factors with high levels
                                   of quality of life, including spirituality and purpose of life.3 Therefore, improving quality of life has been an important
                                   outcome for health-related interventions and positive impact on depression, well-being and psychosocial functioning.23,24
                                      The present review examined the resilience and quality of life among people with mental illness. The relationship
                                   between resilience and quality of life are acquired and assessed. The goal of this review is to collect data that can help
                                   health professionals promote or improve resilience and quality of life in people with mental illness.
                                   Methods
                                   Search Strategy
                                   This study was conducted in compliance with the PRISMA statement.25 Relevant articles were identified by searching
                                   PubMed and PsycINFO for the publication dates from January 1, 2002, to March 25, 2022, with a combination of keywords.
                                   Articles in English available in peer-reviewed journals and resilience and quality of life evaluated by a standardized
                                   questionnaire were included in the systematic review. For the systematic search, text word search terms were used as search
                                   criteria: (resilience) AND (quality of life OR well-being) AND (mental disorder OR psychiatric disorder OR mental illness).
                                   A total of 214 articles were retrieved from two databases, PubMed and PsycINFO. After the exclusion of duplicates (n = 10),
                                   review study (n = 1) and on the basis of content and participants (n = 32), 18 records were screened and in total 8 studies were
                                   included. The characteristics of the included studies are summarized in Table 1 and an overview of the study selection process
                                   is shown in Figure 1. The inclusion criteria for the studies were the following: 1. Mainly investigating the resilience and quality
                                   of life in people with a diagnosis of mental disorders. Self-reported using questionnaire on resilience and quality of life and
                                   measure of association (correlation coefficient/standardized regression coefficient) were included. 2. Articles were published
                                   in scientific journals indexed in JCR and in English.
                                   Results
                                   Participants
                                   In the present systematic review study, the total number of participants included in the 8 articles consisted of 1439
                                   participants with mental disorders. The smallest sample consisted of 44 participants31 and the largest sample had 575
                                   participants.32 The average age was from 29 years to 46 years. In 7 of the 8 studies, the diagnosis of the participants was
                                   specified. In three studies, most of the sample had a diagnosis of major depressive disorder or bipolar disorder.20,33,34
                                   Participants from two studies had a diagnosis of schizophrenia or schizophrenia spectrum disorder.19,31 Participants from
                                   two studies had a diagnosis of borderline personality disorder35 and a blend of major depressive disorder, bipolar disorder
                                   and schizophrenia, respectively.36 Participants were mostly given a diagnosis by psychiatrists according to DSM IV,
                                   DSM V, or ICD-1019,20,31,33–36 In one study, the diagnosis of participants was not specified.32 Most studies included
                                   stable or remitted patients, and one study included patients with acute symptoms;33 two studies did not specify the
                                   symptoms of their participants.32,35 Five studies included healthy participants as a comparison group.19,20,33–35 In one of
                                   Table 1 Summary of Characteristics and Associations Between Resilience and Quality of Life in the Included Studies
                                    Author, Year       Study (Design;     Participants                                   Outcome Measures                       N        r         95% CI              p
                                                       Country)
                                    Wartelsteiner      Cross sectional;   Schizophrenia stable patients                  1.The resilience scale-25(RS-25)       52       0.481     [0.240; 0.666]      0.000
                                    et al19, 2016      Austria                                                           (Wagnild and Young, 1993)
                                                                                                                         2. Lancashire quality of life (105
                                                                                                                         items)
                                    Post et al20,      Cross sectional;   BD-Ι stable patients                           1.The resilience scale-25(RS-25)       60       0.680     [0.515;0.796]       0.000
                                    2018               Austria                                                           (Wagnild and Young, 1993)
                                                                                                                         2. Lancashire quality of life
                                                                                                                         (105 items)
                                    Zizolfi et al31,   Cross sectional;   Stable schizophrenia spectrum disorder         1.The resilience scale-10              44       0.449     [0.176;0.658]       0.002
                                    2019               Italy                                                             (Wagnild and Young, 1993)
                                                                                                                         2.Schizophreia quality of life scale
                                                                                                                         (30 items)
                                    Mejia-             Longitudinal       Patients with homeless and mental disorders    1.25-item Connor-Davidson              575      0.230     [0.151; 0.306]      0.000
                                    Lancheros          study(6-year                                                      Resilience scale
                                    et al32, 2021      follow-up);                                                       2.Lehman’s 20-item QOL
                                                       Denmark                                                           interview(global quality of life)
                                    Pardeller          Cross sectional;   MDD or BD-Ι acutely depressive symptoms        1.Resilience scale-25 (RS-25)          60       0.362     [0.119; 0.564]      0.004
                                    et al33, 2020      Austria            patients                                       (Wagnild and Young, 1993)
                                                                                                                         2.WHOQOL-BREF(28 items)
                                    Lee et al34,       Cross sectional;   BD-Ι, BD-Π, BD NOS, remitted depressive,       1. 25-itemConnor-Davidson              68       0.820     [0.723;0.885]       0.000
                                    2017               South Korea        hyomainc or manic symptoms patients            Resilience scale
                                                                                                                         2.WHOQOL-BREF(28 items)
                                    Guillen et al35,   Cross sectional;   BPD patients receiving psychotherapy for six   1.The resilience scale-15              196      0.740     [0.658;0.804]       0.000
                                    2021               Spain              months                                         (Wagnild and Young, 1993)
                                                                                                                         2.Quality of life index(10 items)
                                    Nunes et al36,     Cross sectional;   Stable severe mental disorder patients         1.The resilience scale-25(RS-25)       384      0.406     [0.319;0.486]       0.000
                                    2022               Brazil             (MDD, BD and schizophrenia)                    (Wagnild and Young, 1993)
                                                                                                                         2. WHOQOL-BREF(28 items)
                                   Abbreviations: MDD, Major depressive disorder; BD-Ι, Bipolar Ι disorder; BD-Π, Bipolar Π disorder; BD NOS, Bipolar disorder, not otherwise unspecified; WHOQOL-
                                   BREF, WHO quality of life-BREF; QoL, Quality of life; BPD, Borderline personality disorder.
                                   the studies, psychotherapy was applied to investigate the effect of treatment on the relationship between resilience and
                                   quality of life35 and one study used a longitudinal design to investigate the long-term effect of resilience on quality of
                                   life.32 In 6 studies, psychological resilience was measured using the original or a translated version of Connor-Davidson
                                   Resilience scale37 or Wagnild and Young Resilience scale38 with 25 items.19,20,32–34,36 Two studies used the short version
                                   with 10 to 15 items.31,35
                                                                                        Correlation                            p-Value
                                                          Pardeller, et al33. (2020)         0.362    [0.119   0.564]           0.004
                                                          Mejia-Lancheros, et al32. (2021)   0.230    [0.151   0.306]           0.000
                                                          Lee, et al34. (2017)               0.820    [0.723   0.885]           0.000
                                                          Post, et al20.(2018)               0.680    [0.515   0.796]           0.000
                                                          Wartelsteiner, et al 19. (2016)    0.481    [0.240   0.666]           0.000
                                                          Zizolfi, et al31. (2019)           0.449    [0.176   0.658]           0.002
                                                          Nunes and Rocha36 (2022)           0.406    [0.319   0.486]           0.000
                                                          Guillen et al35. (2021)            0.740    [0.658   0.804]           0.000
                                                          Random effects model               0.551    [0.370   0.691]           0.000
                                                                                                                                                    -0.50    0.00    0.50    1.00
Figure 2 Forest plot of the relationship between resilience and quality of life (Q = 105.259, p<0.001, I2 = 93.35%).
                                   Publication Bias
                                   Under a random-effects model, visual evaluation of the funnel plot revealed no absence of publication bias. The trim-and-
                                   fill analysis indicated that 4 studies were missing. The mean effect size adjusted for these studies was r = 0.55. The left-sided
                                   test for the asymmetry of the funnel plot using Egger’s regression test was not significant (p = 0.05124) (Figure 3).
                                   Additional Analyses
                                   In addition, other analysis for intervening variables was conducted which could have an effect on the association between
                                   resilience and quality of life and may explain the heterogeneity of study effects. A significant negative effect of sample size
                                   was identified: The larger the study sample, the weaker the association between resilience and quality of life (p = 0.0364).
                                   There was a positive effect of proportion of female study participants (p = 0.0074) and symptoms status (p < 0.001) between
                                   resilience and quality of life, respectively, suggesting that female participants and individuals with stable mental disorder
                                   symptoms were more likely to have a positive association between resilience and quality of life (Table 2).
0.05
                                                          Standard Error
                                                                           0.10
0.15
0.20
Fisher's Z
Figure 3 Random-effect funnel plot of Fisher’s Z by standard error detaining publication bias in the studies reporting resilience and quality of life.
                                   Discussion
                                   The present review found an association between resilience and quality of life in people with mental disorders. Across
                                   the included studies, a significant effect of r = 0.551 was determined representing a moderate correlation. Individuals
                                   with mental disorders who reported having a higher resilience considered their quality of life to be better. The main result
                                   of our meta-analysis was consistent with previous findings on the association between higher resilience and quality of
                                   life.18,19,39 The resilience scale proved to be a reliable instrument in the included studies. Our findings indicated the
                                   association between resilience and quality of life and future studies should examine the efficacy of resiliency training
                                   programs to increase levels of quality of life for individuals with mental disorders. The findings were also consistent with
                                   previous studies that suggested that increasing quality of life may be a vehicle to achieving recovery.40 From a theoretical
                                   view, resilience is considered as a process which will ultimately have a positive effect on subjective satisfaction with
                                   aspects of quality of life. Therefore, resilience is a process that is influenced by the physical, social and psychological
n r 95% CI p
Data analysis
Reporting
                                   status of individuals.41 Other studies indicated that interventions based on mindfulness or resilience reinforcement
                                   program can contribute to the strengthening of feelings in acceptance and competence.42–46
                                       The main weakness of the meta-analysis results from the research designs of the included studies, because associa
                                   tions identified in most cross-sectional studies do not have causal inferences about the association between resilience and
                                   quality of life. Overall, very few prospective studies were available; of these, only one study reported associations
                                   between resilience and quality of life for a follow-up.32 Another limitation results from the statistical heterogeneity of the
                                   individual study effects which makes it more difficult to generalize the results to people with all mental disorders.
                                   However, all studies found positive associations and most were interpreted as moderate to strong. There is no consistent
                                   understanding to define resilience as a state or trait. While some researches view resilience as a personality trait, others
                                   consider it to be a dynamic and changeable process. Thus, various outcome-based approaches of assessment and
                                   operationalization are needed to measure the construct, and longitudinal studies are important to assess for the
                                   causality.47 Lastly, meta-analysis findings should be interpreted with caution due to the limited number of included
                                   studies in the meta-analysis and included criteria, including criterion type, study design, instruction and participants’
                                   characteristics.48
                                   Conclusion
                                   Despite the limitations mentioned above, the results of the present meta-analysis indicate that a higher level of resilience
                                   is associated with better quality of life in people with mental disorders. This study is the first to provide a statistical
                                   integration of the effects and the study makes a contribution to resilience research. Resilience appears to be an important
                                   factor in the context of psychopathology and improvement of quality of life. On the path to recovery, resilience has its
                                   importance and impact on the quality of life of individuals with mental disorders. High resilience does not necessarily
                                   prevent mental illness, but it has a significant contribution as part of a comprehensive therapy in the treatment of
                                   depression and other psychiatric disorders.11
                                       Prospective studies are needed to clarify the causal nature of the association between resilience and quality of life.
                                   Future research should aim to identify individuals with low resilience in clinical practice and offer them support or
                                   training, in terms of external resources, to enhance their quality of life.49
                                   Acknowledgment
                                   This study was supported by grant from Zuoying Armed Forces General Hospital, Kaohsiung, Taiwan (KAFGH-ZY-D-111034).
                                   Disclosure
                                   All authors declare no competing interests in this work.
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