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Background/purpose: Suicide is a huge global health burden. High suicide rates with a low prevalence of major depressive disorder were reported in East Asia. This study aimed to investigate the prevalence of suicidal behaviors in relation to the demographic characteristics and major depressive disorder in Taiwan. Methods: This study was based on the Taiwan Psychiatric Morbidity Survey, conducted between 2003 and 2005, a survey of common psychiatric disorders in a nationally representative sample of non-institutionalized civilians aged 18 or above. Demographic data, major depressive disorder, and suicidal behaviors were ascertained by a face-to-face interview using the paper version of the World Mental Health Survey Composite International Diagnostic Interview. Results: According to the total sample of 10,135 participants, the lifetime prevalence of suicidal ideation, plans and attempts was 7.52% (S.E = 0.46%), 1.31% (S.E. = 0.16%) and 1.29% (S.E. = 0.16%), respectively. Among suicide ideators, the conditional probability of making a suicide plan was 17.39% (S.E. = 1.92%), and a suicide attempt 17.16% (S.E. = 2.15%). Age ≤ 40, female sex, and major depressive disorder were related to a higher risk of suicidal behaviors in the general population; the former two were associated with further developing suicide attempts and the latter one developing plans among ideators. Conclusion: Despite low prevalence, major depressive disorder remained a significant risk factor for suicidal behaviors in Taiwan.

Background: East Asia has high suicide rates but low prevalence of mental disorders. We examined the associations between prior lifetime mental disorders (mood disorders, anxiety disorders, substance use disorders, and impulse control disorders) and subsequent suicidal behaviors (suicidal ideation and attempts in the general population and suicide plans, planned attempts, and unplanned attempts in suicidal ideators) in Taiwan. Methods: This survey applied the World Mental Health Survey Composite International Diagnostic Interview to a population representative sample of noninstitutionalized adults between 2003 and 2005. Odds ratios (ORs) obtained using discrete-time survival analysis were used to estimate population attributable fractions (PAFs) of suicidal behaviors due to lifetime mental disorders. Results: Lifetime mental illness was a significant risk factor for subsequent suicidal behaviors (except unplanned attempts among ideators) despite the relatively low prevalence of mental disorders in people with suicidality (16.1%–35.0%). Each diagnosis increased the odds of suicidal ideation. In terms of acting on suicidal ideation, mood disorders were most strongly associated with having plans (OR = 10.0; 95% confidence interval, CI 4.3–21.1), whereas substance use disorders most strongly with either planned (OR = 27.3; 95% CI 6.3–118.5) or unplanned attempts (OR = 14.5; 95% CI 1.7–121.5). PAFs of all mental disorders on suicidality lay between 20 and 30% (except 11% of unplanned attempts among ideators). Mood, anxiety, and substance use disorders had higher PAFs than impulse control disorders. Conclusions: In addition to mood disorders, considering anxiety and substance use disorders is essential in devising population-based suicide prevention strategies. [ABSTRACT FROM AUTHOR]

Background/purpose: Suicide is a huge global health burden. High suicide rates with a low prevalence of major depressive disorder were reported in East Asia. This study aimed to investigate the prevalence of suicidal behaviors in relation to the demographic characteristics and major depressive disorder in Taiwan.Methods: This study was based on the Taiwan Psychiatric Morbidity Survey, conducted between 2003 and 2005, a survey of common psychiatric disorders in a nationally representative sample of non-institutionalized civilians aged 18 or above. Demographic data, major depressive disorder, and suicidal behaviors were ascertained by a face-to-face interview using the paper version of the World Mental Health Survey Composite International Diagnostic Interview.Results: According to the total sample of 10,135 participants, the lifetime prevalence of suicidal ideation, plans and attempts was 7.52% (S.E = 0.46%), 1.31% (S.E. = 0.16%) and 1.29% (S.E. = 0.16%), respectively. Among suicide ideators, the conditional probability of making a suicide plan was 17.39% (S.E. = 1.92%), and a suicide attempt 17.16% (S.E. = 2.15%). Age ≤ 40, female sex, and major depressive disorder were related to a higher risk of suicidal behaviors in the general population; the former two were associated with further developing suicide attempts and the latter one developing plans among ideators.Conclusion: Despite low prevalence, major depressive disorder remained a significant risk factor for suicidal behaviors in Taiwan. [ABSTRACT FROM AUTHOR]

BackgroundIn 1986, Reactor 4 of the Chernobyl nuclear power plant near Pripyat, Ukraine exploded, releasing highly-radioactive materials into the surrounding environment. Although the physical effects of the disaster have been well-documented, a limited amount of research has been conducted on association of the disaster with long-term, clinically-diagnosable mental health disorders. According to the diathesis–stress model, the stress of potential and unknown exposure to radioactive materials and the ensuing changes to ones life or environment due to the disaster might lead those with previous vulnerabilities to fall into a poor state of mental health. Previous studies of this disaster have found elevated symptoms of stress, substance abuse, anxiety, and depression in exposed populations, though often at a subclinical level.Materials and methodsWith data from The World Mental Health Composite International Diagnostic Interview, a cross-sectional large mental health survey conducted in Ukraine by the World Health Organization, the mental health of Ukrainians was modeled with multivariable logistic regression techniques to determine if any long-term mental health disorders were association with reporting having lived in the zone affected by the Chernobyl nuclear disaster. Common classes of psychiatric disorders were examined as well as self-report ratings of physical and mental health.ResultsReporting that one lived in the Chernobyl-affected disaster zone was associated with a higher rate of alcohol disorders among men and higher rates of intermittent explosive disorders among women in a prevalence model. Subjects who lived in the disaster zone also had lower ratings of personal physical and mental health when compared to controls.DiscussionStress resulting from disaster exposure, whether or not such exposure actually occurred or was merely feared, and ensuing changes in life circumstances is associated with increased rates of mental health disorders. Professionals assisting populations that are coping with the consequences of disaster should be aware of possible increases in psychiatric disorders as well as poorer perceptions regarding personal physical and mental health.

Background: All World Mental Health (WMH) Surveys apply high standards of data quality. To date, most of the published quality control (QC) procedures for these surveys were in relation to face-to-face interviews. However, owing to the social restrictions that emerged from the COVID-19 pandemic, telephone interviews are the most effective alternative for conducting complex probability-based large-scale surveys., Objective: In this paper, we present the QC system implemented in the WMH Qatar Survey, the first WMH Survey conducted during the COVID-19 pandemic in the Middle East. The objective of the QC process was to acquire high data quality through the reduction of random errors and bias in data collection., Methods: The QC design and procedures in this study were adapted to the telephone survey mode in response to the COVID-19 pandemic. We focus on the design of the QC indicator system and its implementation, including the investigation process, monitoring interviewers' performance during survey fielding and applying quality-informed interventions., Results: The study team investigated 11,035 flags triggered during the 2 waves of the survey data collection. The most triggered flags were related to short question administration duration and multiple visits to the same survey questions or responses. Live monitoring of the interviews helped in understanding why certain duration-related flags were triggered and the interviewing patterns of the interviewers. Corrective and preventive actions were taken against interviewers' behaviors based on the investigation of triggered flags per interviewer and live call monitoring of interviews. Although, in most cases, the interviewers required refresher training sessions and feedback to improve their performance, several interviewers discontinued work because of low productivity and a high number of triggered flags., Conclusions: The specific QC procedures implemented in the course of the WMH Qatar Survey were essential for successfully meeting the target number of interviews (N=5000). The QC strategies and the new indicators customized for telephone interviews contributed to the flag investigation and verification process. The QC data presented in this study shed light on the rigorous methods and quality monitoring processes in the course of conducting a large-scale national survey on sensitive topics during the COVID-19 pandemic., (©Catalina Petcu, Ikram Boukhelif, Veena Davis, Hamda Shamsi, Marwa Al-Assi, Anis Miladi, Salma M Khaled. Originally published in JMIR Formative Research (https://formative.jmir.org), 27.11.2023.)

Objectives: Religiosity is often associated with better health outcomes. The aim of the study was to examine associations between psychotic experiences (PEs) and religiosity in a large, cross-national sample. Methods: A total of 25 542 adult respondents across 18 countries from the WHO World Mental Health Surveys were assessed for PEs, religious affiliation and indices of religiosity, DSM-IV mental disorders and general medical conditions. Logistic regression models were used to estimate the association between PEs and religiosity with various adjustments. Results: Of 25 542 included respondents, 85.6% (SE = 0.3) (n = 21 860) respondents reported having a religious affiliation. Overall, there was no association between religious affiliation status and PEs. Within the subgroup having a religious affiliation, four of five indices of religiosity were significantly associated with increased odds of PEs (odds ratios ranged from 1.3 to 1.9). The findings persisted after adjustments for mental disorders and/or general medical conditions, as well as religious denomination type. There was a significant association between increased religiosity and reporting more types of PEs. Conclusions: Among individuals with religious affiliations, those who reported more religiosity on four of five indices had increased odds of PEs. Focussed and more qualitative research will be required to unravel the interrelationship between religiosity and PEs. [ABSTRACT FROM AUTHOR]

Background: In 1986, Reactor 4 of the Chernobyl nuclear power plant near Pripyat, Ukraine exploded, releasing highly-radioactive materials into the surrounding environment. Although the physical effects of the disaster have been well-documented, a limited amount of research has been conducted on association of the disaster with long-term, clinically-diagnosable mental health disorders. According to the diathesis-stress model, the stress of potential and unknown exposure to radioactive materials and the ensuing changes to ones life or environment due to the disaster might lead those with previous vulnerabilities to fall into a poor state of mental health. Previous studies of this disaster have found elevated symptoms of stress, substance abuse, anxiety, and depression in exposed populations, though often at a subclinical level. Materials and methods: With data from The World Mental Health Composite International Diagnostic Interview, a cross-sectional large mental health survey conducted in Ukraine by the World Health Organization, the mental health of Ukrainians was modeled with multivariable logistic regression techniques to determine if any long-term mental health disorders were association with reporting having lived in the zone affected by the Chernobyl nuclear disaster. Common classes of psychiatric disorders were examined as well as self-report ratings of physical and mental health. Results: Reporting that one lived in the Chernobyl-affected disaster zone was associated with a higher rate of alcohol disorders among men and higher rates of intermittent explosive disorders among women in a prevalence model. Subjects who lived in the disaster zone also had lower ratings of personal physical and mental health when compared to controls. Discussion: Stress resulting from disaster exposure, whether or not such exposure actually occurred or was merely feared, and ensuing changes in life circumstances is associated with increased rates of mental health disorders. Professionals assisting populations that are coping with the consequences of disaster should be aware of possible increases in psychiatric disorders as well as poorer perceptions regarding personal physical and mental health. [ABSTRACT FROM AUTHOR]

Rationale The prevalence of common mental disorders (CMDs, i.e., depression and anxiety) worldwide is substantial, and prevalence rates are higher in high-income than in low- and middle-income countries. This difference might reflect both underlying prevalence rates as well as the measurement model used in cross-national epidemiological studies. Schwartz' cultural values provide a meaningful taxonomy to describe ‘culture’ and to examine how culture affects both the aetiology and phenomenology of CMDs. Objective The present study examines to what extent Schwartz' cultural values correlate with prevalence rates of CMDs at the country-level. Method Twenty-five countries were included in this study. Countries were included if data on cultural values and lifetime prevalence rates, from either the World Mental Health Surveys or the Global Burden of Disease Study, were available for at least one CMD. Spearman rank correlations were calculated between prevalence rates and cultural values, controlling for gross national income (GNI) per capita. Results Affective disorders correlated with cultural values, after controlling for GNI. For anxiety disorders, correlations were lower but still offered meaningful insights. Correlations followed the circular structure of values, meaning that the strength of relationship decreased and increased again when moving around the circle: the strongest positive correlations were found with egalitarianism, and the strongest negative correlations with hierarchy and mastery. The autonomy-embeddedness dimension correlated weakly with the prevalence of CMDs. Conclusions Diverging prevalence rates between high-income countries and low- and middle-income countries are associated with differences in cultural values. Values might not only relate to the aetiology of mental disorders, but most possibly affect the way in which psychological distress is expressed. As an example, in societies with a strong focus on embeddedness, the fear of stigma might be more pronounced. Cultural values offer a middle ground between culturally specific (i.e., emic) and universalist (i.e., etic) research. [ABSTRACT FROM AUTHOR]

The World Health Organization (WHO) World Mental Health (WMH) Survey Initiative uses the Composite International Diagnostic Interview (CIDI). The first 13 surveys only assessed substance dependence among respondents with a history of substance abuse; later surveys also assessed substance dependence without symptoms of abuse. We compared results across the two sets of surveys to assess implications of the revised logic and develop an imputation model for missing values of lifetime dependence in the earlier surveys. Lifetime dependence without symptoms of abuse was low in the second set of surveys (0.3% alcohol, 0.2% drugs). Regression-based imputation models were built in random half-samples of the new surveys and validated in the other half. There were minimal differences for imputed and actual reported cases in the validation dataset for age, gender and quantity; more mental disorders and days out of role were found in the imputed cases. Concordance between imputed and observed dependence cases in the full sample was high for alcohol [sensitivity 88.0%, specificity 99.8%, total classification accuracy (TCA) 99.5%, area under the curve (AUC) 0.94] and drug dependence (sensitivity 100.0%, specificity 99.8%, TCA 99.8%, AUC 1.00). This provides cross-national evidence of the small degree to which lifetime dependence occurs without symptoms of abuse. Imputation of substance dependence in the earlier WMH surveys improved estimates of dependence. [ABSTRACT FROM AUTHOR]

Objective While psychotic experiences ( PEs) are known to be associated with a range of mental and general medical disorders, little is known about the association between PEs and measures of disability. We aimed to investigate this question using the World Mental Health surveys. Method Lifetime occurrences of six types of PEs were assessed along with 21 mental disorders and 14 general medical conditions. Disability was assessed with a modified version of the WHO Disability Assessment Schedule. Descriptive statistics and logistic regression models were used to investigate the association between PEs and high disability scores (top quartile) with various adjustments. Results Respondents with PEs were more likely to have top quartile scores on global disability than respondents without PEs (19.1% vs. 7.5%; χ2 = 190.1, P < 0.001) as well as greater likelihood of cognitive, social, and role impairment. Relationships persisted in each adjusted model. A significant dose-response relationship was also found for the PE type measures with most of these outcomes. Conclusions Psychotic experiences are associated with disability measures with a dose-response relationship. These results are consistent with the view that PEs are associated with disability regardless of the presence of comorbid mental or general medical disorders. [ABSTRACT FROM AUTHOR]

BackgroundAlthough there is robust evidence linking childhood adversities (CAs) and an increased risk for psychotic experiences (PEs), little is known about whether these associations vary across the life-course and whether mental disorders that emerge prior to PEs explain these associations.MethodWe assessed CAs, PEs and DSM-IV mental disorders in 23 998 adults in the WHO World Mental Health Surveys. Discrete-time survival analysis was used to investigate the associations between CAs and PEs, and the influence of mental disorders on these associations using multivariate logistic models.ResultsExposure to CAs was common, and those who experienced any CAs had increased odds of later PEs [odds ratio (OR) 2.3, 95% confidence interval (CI) 1.9–2.6]. CAs reflecting maladaptive family functioning (MFF), including abuse, neglect, and parent maladjustment, exhibited the strongest associations with PE onset in all life-course stages. Sexual abuse exhibited a strong association with PE onset during childhood (OR 8.5, 95% CI 3.6–20.2), whereas Other CA types were associated with PE onset in adolescence. Associations of other CAs with PEs disappeared in adolescence after adjustment for prior-onset mental disorders. The population attributable risk proportion (PARP) for PEs associated with all CAs was 31% (24% for MFF).ConclusionsExposure to CAs is associated with PE onset throughout the life-course, although sexual abuse is most strongly associated with childhood-onset PEs. The presence of mental disorders prior to the onset of PEs does not fully explain these associations. The large PARPs suggest that preventing CAs could lead to a meaningful reduction in PEs in the population. [ABSTRACT FROM PUBLISHER]

This study examined the intergenerational continuity of potentially injurious physical discipline of children in a community sample from Japan and the confounding effects of childhood adversities on the continuity. Using the data from the World Mental Health Japan Survey ( n = 1186), we found that experience of physical discipline as children was significantly associated with the use of physical discipline as parents independent of other childhood adversities. This association was also independent of the respondents' mental disorders and household income. No significant gender differences were found in the associations between childhood physical discipline and adult perpetration. The current study on Japan provided empirical support consistent with results found in other countries regarding the intergenerational transmission of child physical abuse. [ABSTRACT FROM AUTHOR]

Socially desirable reporting to survey questions can lead to measurement error that is specific to questions, data collection modes, interviewers, and respondents. Social desirability scales commonly used in the literature, such as the Marlowe-Crowne Scale, assume that the respondent-level component is stable across all sensitive survey questions. To relax this assumption, we use mixed Rasch models (MRMs), a measurement tool that incorporates both respondent and question information to measure the respondent's socially desirable response behavior. MRMs are a mixture of latent class and item response theory (IRT) models. IRT models are applied to scales consisting of multiple items measuring a latent construct. One of the latent item characteristics modeled is “item difficulty,” which refers to the extent to which an item taps into the construct. When applied to a desirable/undesirable question, item difficulty also captures the perceived sensitivity of the item. Thus, more desirable items have a higher probability and less desirable items have a lower probability of being endorsed, though they both tap into the same level of the construct. The respondent's perception of the item's sensitivity could be affected by his or her characteristics, such as the need for social conformity. Such respondent-level variability in the perceived sensitivity of the item could lead to differences in the item difficulty estimates across respondents. We explore the use of MRMs to capture such respondent-level variability through latent classes. We hypothesize that these latent classes from MRMs capture respondents with different needs for social conformity and in turn different socially desirable response behavior. We confirm the nature of these latent classes by testing their association with objective survey context measures, such as interview privacy and interview mode. We apply these models to desirable, undesirable, and relatively neutral item scales from the Lebanon World Mental Health Survey. [ABSTRACT FROM AUTHOR]

BackgroundThis study examined the prevalence of major depressive disorder (MDD), and the correlations and co-morbid conditions associated with MDD, in the adult Taiwanese population, which a previous estimate in the 1980s had found to be at the lower end of the spectrum worldwide. Possible explanations for the reported low prevalence of MDD were evaluated.MethodAs part of a survey of common psychiatric disorders in a nationally representative sample of individuals aged ⩾18 years who were non-institutionalized civilians in Taiwan, a face-to-face interview using the paper version of the World Mental Health Survey of the World Health Organization (WHO) Composite International Diagnostic Interview (WMH-CIDI) was conducted between 2003 and 2005. Functional impairment and help-seeking behaviors were compared between Taiwanese subjects with MDD and their counterparts in the USA.ResultsAmong the 10 135 respondents, the lifetime prevalence of MDD was 1.20% [standard error (s.e.)=0.2%]. Individuals who were divorced or widowed, aged ⩽40 years, and female were at increased risk, whereas rural residents were at lower risk for MDD. The proportion of MDD cases co-morbid with other psychiatric disorders in this study was much lower than in the US study. Only one-third of Taiwanese individuals with MDD sought help despite having twice the number of lost workdays compared with the US sample.ConclusionsDespite the low prevalence of MDD in Taiwanese adults, the pattern of low help-seeking behavior and profound functional impairment indicates much room for improvement in the early detection of and intervention in major depression in this population. [ABSTRACT FROM PUBLISHER]

Research on status inconsistency (SI) and its impact on mental health has been dormant for many years. This study tested the association between SI and emotional distress, anxiety and mood disorders. Data were gathered from the Israel-based component of the World Mental Health Survey ( n = 4,859). SI was defined by the combination of high education (13+ years) with low income (1st decile). Mood and anxiety disorders were diagnosed with the composite international diagnostic instrument (CIDI), and emotional distress was measured with the 12-item general health questionnaire (GHQ-12). Multivariate analysis showed increased risk for mood or anxiety disorders among SI subjects ( n = 231), odds ratio (OR) = 1.75, 95% confidence interval (95% CI) 1.13–2.63. The estimate was slightly attenuated when marital status was added to the model (OR = 1.55, 95% CI 1.0–2.39). SI subjects showed higher GHQ-12 scores. SI, which can disrupt an individual’s sense of coherence, is associated, although not causally, with increased 12 month prevalence rates for mood or anxiety disorders and with higher psychological distress. [ABSTRACT FROM AUTHOR]

Aim: Suicide is a major public health concern in Japan but little is known about the prevalence of and risk factors for suicidal ideation, plans, and attempts. The aim of the present study was to clarify the prevalence of and risk factors for important suicide-related outcomes. Methods: Important suicide-related outcomes and risk factors were assessed in face-to-face interviews with 2436 adult respondents in seven areas as part of the World Health Organization (WHO) World Mental Health Survey Initiative. Mental disorders were assessed with the WHO Composite International Diagnostic Interview (CIDI). Results: The lifetime prevalence estimates of suicidal ideation, plans, and attempts were 10.9%, 2.1%, and 1.9%, respectively. Risk of suicide plans and attempts was highest when suicidal ideation occurred at an early age and within the first year of ideation. In middle-aged individuals, the period after first employment and the presence of mental disorders were risk factors. Conclusions: Risk of suicide plans and attempts is highest when suicidal ideation occurred at an earlier age and within the first year of ideation. Mental disorders are as predictive of the suicide-related outcomes examined here, and comorbidity is an important predictor. [ABSTRACT FROM AUTHOR]