scholarly journals Prevalence of personality disorders in the general adult population in Western countries: systematic review and meta-analysis

2018 ◽  
Vol 213 (6) ◽  
pp. 709-715 ◽  
Author(s):  
Jana Volkert ◽  
Thorsten-Christian Gablonski ◽  
Sven Rabung
Keyword(s):  
Personality Disorder ◽  
Personality Disorders ◽  
Meta Analysis ◽  
Adult Population ◽  
Epidemiological Studies ◽  
Sensitivity Analyses ◽  
Prevalence Rates ◽  
Efficient Treatment ◽  
Random Effects Models ◽  
Western Countries

BackgroundPersonality disorder is a severe health issue. However, the epidemiology of personality disorders is insufficiently described and surveys report very heterogeneous rates.AimsWe aimed to conduct a meta-analysis on the prevalence of personality disorders in adult populations and examine potential moderators that affect heterogeneity.MethodWe searched PsycINFO, PSYNDEX and Medline for studies that used standardised diagnostics (DSM-IV/-5, ICD-10) to report prevalence rates of personality disorders in community populations in Western countries. Prevalence rates were extracted and aggregated by random-effects models. Meta-regression and sensitivity analyses were performed and publication bias was assessed.ResultsThe final sample comprised ten studies, with a total of 113 998 individuals. Prevalence rates were fairly high for any personality disorder (12.16%; 95% CI, 8.01–17.02%) and similarly high for DSM Clusters A, B and C, between 5.53 (95% CI, 3.20–8.43%) and 7.23% (95% CI, 2.37–14.42%). Prevalence was highest for obsessive–compulsive personality disorder (4.32%; 95% CI, 2.16–7.16%) and lowest for dependent personality disorder (0.78%; 95% CI, 0.37–1.32%). A low prevalence was significantly associated with expert-rated assessment (versus self-rated) and reporting of descriptive statistics for antisocial personality disorder.ConclusionsEpidemiological studies on personality disorders in community samples are rare, whereas prevalence rates are fairly high and vary substantially depending on samples and methods. Future studies investigating the epidemiology of personality disorders based on the DSM-5 and ICD-11 and models of personality functioning and traits are needed, and efficient treatment should be a priority for healthcare systems to reduce disease burden.Declaration of interestNone.

scholarly journals The prevalence of personality disorders in the community: a global systematic review and meta-analysis

2019 ◽  
Vol 216 (2) ◽  
pp. 69-78 ◽  
Author(s):  
Catherine Winsper ◽  
Ayten Bilgin ◽  
Andrew Thompson ◽  
Steven Marwaha ◽  
Andrew M. Chanen ◽  
...  
Keyword(s):  
Personality Disorder ◽  
Personality Disorders ◽  
Study Design ◽  
Large Scale ◽  
Meta Analysis ◽  
High Income ◽  
Significant Heterogeneity ◽  
Prevalence Rates ◽  
Middle Income ◽  
Pooled Prevalence

BackgroundPersonality disorders are now internationally recognised as a mental health priority. Nevertheless, there are no systematic reviews examining the global prevalence of personality disorders.AimsTo calculate the worldwide prevalence of personality disorders and examine whether rates vary between high-income countries and low- and middle-income countries (LMICs).MethodWe systematically searched PsycINFO, MEDLINE, EMBASE and PubMed from January 1980 to May 2018 to identify articles reporting personality disorder prevalence rates in community populations (PROSPERO registration number: CRD42017065094).ResultsA total of 46 studies (from 21 different countries spanning 6 continents) satisfied inclusion criteria. The worldwide pooled prevalence of any personality disorder was 7.8% (95% CI 6.1–9.5). Rates were greater in high-income countries (9.6%, 95% CI 7.9–11.3%) compared with LMICs (4.3%, 95% CI 2.6–6.1%). In univariate meta-regressions, significant heterogeneity was partly attributable to study design (two-stage v. one-stage assessment), county income (high-income countries v. LMICs) and interview administration (clinician v. trained graduate). In multiple meta-regression analysis, study design remained a significant predictor of heterogeneity. Global rates of cluster A, B and C personality disorders were 3.8% (95% CI 3.2, 4.4%), 2.8% (1.6, 3.7%) and 5.0% (4.2, 5.9%).ConclusionsPersonality disorders are prevalent globally. Nevertheless, pooled prevalence rates should be interpreted with caution due to high levels of heterogeneity. More large-scale studies with standardised methodologies are now needed to increase our understanding of population needs and regional variations.

scholarly journals To which extent are per-and poly-fluorinated substances associated to metabolic syndrome?

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Maryam Zare Jeddi ◽  
Rozita Soltanmohammadi ◽  
Giulia Barbieri ◽  
Aline S. C. Fabricio ◽  
Gisella Pitter ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
General Population ◽  
Meta Analysis ◽  
Small Body ◽  
Epidemiological Studies ◽  
Cross Sectional ◽  
Random Effects Models ◽  
Epidemiologic Evidence ◽  
Adults And Children ◽  
Meta Analyses

Abstract Exposure to per- and polyfluoroalkyl substances (PFAS), ubiquitous persistent environmental contaminants, has led to substantial global concern due to their potential environmental and human health effects. Several epidemiological studies have assessed the possible association between PFAS exposure and risk of metabolic syndrome (MetS), however, the results are ambiguous. The aim of this study was to assess the current human epidemiologic evidence on the association between exposure to PFAS and MetS. We performed a systematic search strategy using three electronic databases (PubMed, Scopus, and Web of Science) for relevant studies concerning the associations of PFAS with MetS and its clinical relevance from inception until January 2021. We undertook meta-analyses where there were five or more studies with exposure and outcomes assessments that were reasonably comparable. The pooled odd ratios (ORs) were calculated using random effects models and heterogeneity among studies was assessed by I2 index and Q test. A total of 12 cross-sectional studies (10 studies on the general population and two studies in the occupational settings) investigated the association between PFAS exposure and MetS. We pooled data from seven studies on the general population for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) and five studies for perfluorohexanesulfonate (PFHxS) and perfluorononanoic acid (PFNA). Predominately, most studies reported no statistically significant association between concentrations of PFAS and MetS. In the meta-analysis, the overall measure of effect was not statistically significant, showing no evidence of an association between concentrations of PFOA, PFOS, PFNA, and PFHxS and the risk of MetS. Based on the results of the meta-analysis, current small body of evidence does not support association between PFAS and MetS. However, due to limited number of studies and substantial heterogeneity, results should be interpreted with caution. Further scrutinizing cohort studies are needed to evaluate the association between various and less well-known PFAS substances and their mixture with MetS and its components in both adults and children in different settings.

scholarly journals Systematic review and meta-analysis of the prevalence of depressive symptoms, dysthymia and major depressive disorders among homeless people

BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e040061
Author(s):  
Getinet Ayano ◽  
Asmare Belete ◽  
Bereket Duko ◽  
Light Tsegay ◽  
Berihun Assefa Dachew
Keyword(s):  
Systematic Review ◽  
Depressive Symptoms ◽  
Depressive Disorders ◽  
Meta Analysis ◽  
Random Effect ◽  
Homeless People ◽  
Sensitivity Analyses ◽  
Prevalence Rates ◽  
Major Depressive ◽  
Major Depressive Disorders

ObjectivesTo assess the global prevalence estimates of depressive symptoms, dysthymia and major depressive disorders (MDDs) among homeless people.DesignSystematic review and meta-analysis.Data sourcesDatabases including PubMed, Scopus and Web of Science were systematically searched up to February 2020 to identify relevant studies that have reported data on the prevalence of depressive symptoms, dysthymia and MDDs among homeless people.Eligibility criteriaOriginal epidemiological studies written in English that addressed the prevalence of depressive problems among homeless people.Data extraction and synthesisA random-effect meta-analysis was performed to pool the prevalence estimated from individual studies. Subgroup and sensitivity analyses were employed to compare the prevalence across the groups as well as to identify the source of heterogeneities. The Joanna Briggs Institute’s quality assessment checklist was used to measure the study quality. Cochran’s Q and the I2 test were used to assess heterogeneity between the studies.ResultsForty publications, including 17 215 participants, were included in the final analysis. This meta-analysis demonstrated considerably higher prevalence rates of depressive symptoms 46.72% (95% CI 37.77% to 55.90%), dysthymia 8.25% (95% CI 4.79% to 11.86%), as well as MDDs 26.24% (95% CI 21.02% to 32.22%) among homeless people. Our subgroup analysis showed that the prevalence of depressive symptoms was high among younger homeless people (<25 years of age), whereas the prevalence of MDD was high among older homeless people (>50 years of age) when compared with adults (25–50 years).ConclusionThis review showed that nearly half, one-fourth and one-tenth of homeless people are suffering from depressive symptoms, dysthymia and MDDs, respectively, which are notably higher than the reported prevalence rates in the general population. The findings suggest the need for appropriate mental health prevention and treatment strategies for this population group.

scholarly journals Tobacco use among the elderly: a systematic review and meta-analysis

2010 ◽  
Vol 26 (12) ◽  
pp. 2213-2233 ◽  
Author(s):  
Valeska Marinho ◽  
Jerson Laks ◽  
Evandro Silva Freire Coutinho ◽  
Sergio Luís Blay
Keyword(s):  
Systematic Review ◽  
Tobacco Use ◽  
Literature Search ◽  
Economic Status ◽  
Meta Analysis ◽  
The Elderly ◽  
Epidemiological Studies ◽  
Elderly Subjects ◽  
Random Effects Model ◽  
Prevalence Rates

The aim of this study was to combine the results of identified surveys on the prevalence of tobacco use in old age to estimate world prevalence of tobacco use and possible factors related to such behavior among the elderly. The literature search included electronic databases such as MEDLINE, LILACS, and Biological Abstracts, hand-searching of specialist journals and cited reference searches. The combined global prevalence was estimated using the random effects model. The total number of elderly subjects included in all surveys was 140,058, with data available from all the continents. Overall prevalence of tobacco use was 13% in both genders (22% male and 8% female). The prevalence rates were heterogeneous among surveys and were associated with smoking definition, questionnaire application, and country economic status. Few epidemiological studies assessed tobacco use among the elderly. A higher prevalence rate of tobacco use in males who live in higher income countries could be found, although additional evidence regarding elderly samples is still required.

scholarly journals Leishmanicidal effects of resveratrol and its derivatives: a systematic review and meta-Analysis

2020 ◽  
Author(s):  
Nasrin Amiri Dashatan ◽  
Marzieh Ashrafmansouri ◽  
Mehdi Koushki ◽  
Nayebali Ahmadi
Keyword(s):  
Systematic Review ◽  
Publication Bias ◽  
Data Extraction ◽  
Meta Analysis ◽  
Sensitivity Analyses ◽  
Protective Effects ◽  
Random Effects Models ◽  
Important Health ◽  
Mean Differences ◽  
Meta Analyses

Abstract Background Leishmaniasis is one of the most important health problems worldwide. The evidence has suggested that resveratrol and its derivatives have anti-leishmanial effects; however, the results are inconsistent and inconclusive. The aim of this study was to assess the effect of resveratrol and its derivatives on the Leishmania viability through a systematic review and meta-analysis of available relevant studies. Methods The electronic databases PubMed, ScienceDirect, Embase, Web of Science and Scopus were queried between October 2000 and April 2020 using a comprehensive search strategy. The eligible articles selected and data extraction conducted by two reviewers. Mean differences of IC50 (concentration leading to reduction of 50% of Leishmania) for each outcome was calculated using random-effects models. Sensitivity analyses and prespecified subgroup were conducted to evaluate potential heterogeneity and the stability of the pooled results. Publication bias was evaluated using the Egger’s and Begg’s tests. We also followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines for this review. Results Ten studies were included in the meta-analysis. We observed that RSV and its derivatives had significant reducing effects on Leishmania viability in promastigote [24.02 µg/ml; (95% CI 17.1, 30.8); P < 0.05; I2 = 99.8%; P heterogeneity = 0.00] and amastigote [18.3 µg/ml; (95% CI 13.5, 23.2); P < 0.05; I2 = 99.6%; P heterogeneity = 0.00] stages of Leishmania. A significant publication bias was observed in the meta-analysis. Sensitivity analyses showed a similar effect size while reducing the heterogeneity. Subgroup analysis indicated that the pooled effects of leishmanicidal of resveratrol and its derivatives were affected by type of stilbenes and Leishmania species. Conclusions Our findings clearly suggest that the strategies for the treatment of leishmaniasis should be focused on natural products such as RSV and its derivatives. Further study is needed to identify the mechanisms mediating this protective effects of RSV and its derivatives in leishmaniasis.

scholarly journals Effectiveness of Psychological Treatments for Borderline Personality Disorder and Predictors of Treatment Outcomes: A Multivariate Multilevel Meta-Analysis of Data from All Design Types

2021 ◽  
Vol 10 (23) ◽  
pp. 5622
Author(s):  
Sophie A. Rameckers ◽  
Rogier E. J. Verhoef ◽  
Raoul P. P. P. Grasman ◽  
Wouter R. Cox ◽  
Arnold A. P. van Emmerik ◽  
...  
Keyword(s):  
Borderline Personality Disorder ◽  
Personality Disorder ◽  
Dialectical Behavior Therapy ◽  
Treatment Effectiveness ◽  
Meta Analysis ◽  
Borderline Personality ◽  
Effect Sizes ◽  
Sensitivity Analyses ◽  
Treatment As Usual ◽  
Logarithmic Relationship

We examined the effectiveness of psychotherapies for adult Borderline Personality Disorder (BPD) in a multilevel meta-analysis, including all trial types (PROSPERO ID: CRD42020111351). We tested several predictors, including trial- and outcome type (continuous or dichotomous), setting, BPD symptom domain and mean age. We included 87 studies (N = 5881) from searches between 2013 and 2019 in four databases. We controlled for differing treatment lengths and a logarithmic relationship between treatment duration and effectiveness. Sensitivity analyses were conducted by excluding outliers and by prioritizing total scale scores when both subscale and total scores were reported. Schema Therapy, Mentalization-Based Treatment and reduced Dialectical Behavior Therapy were associated with higher effect sizes than average, and treatment-as-usual with lower effect sizes. General severity and affective instability showed the strongest improvement, dissociation, anger, impulsivity and suicidality/self-injury the least. Treatment effectiveness decreased as the age of participants increased. Dichotomous outcomes were associated to larger effects, and analyses based on last observation carried forward to smaller effects. Compared to the average, the highest reductions were found for certain specialized psychotherapies. All BPD domains improved, though not equally. These findings have a high generalizability. However, causal conclusions cannot be drawn, although the design type did not influence the results.

Cigarette smoking as a risk factor for type 2 diabetes in women compared with men: a systematic review and meta-analysis of prospective cohort studies

2018 ◽  
Vol 41 (2) ◽  
pp. e169-e176 ◽  
Author(s):  
Shuai Yuan ◽  
Hong-liang Xue ◽  
Hong-jie Yu ◽  
Yao Huang ◽  
Bo-wen Tang ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Current Smoking ◽  
Random Effects Models ◽  
Prospective Cohorts ◽  
Former Smokers ◽  
Incident Cases ◽  
Similar Risk

Abstract Background Few studies have investigated the effect of smoking on type 2 diabetes in women compared with men, even though several epidemiological studies provided a clear picture of the risk among the entire population. Methods We systematically searched PubMed and Embase up to August 2017 for prospective studies that were stratified by sex with measures of the relative risk (RR) for type 2 diabetes and current smoking compared with non-smoking. The sex-specific RRs and their ratios (RRRs), comparing women with man, were pooled using random-effects models. Results Seventeen articles were identified including 20 prospective cohorts with 5 077 289 participants and 223 084 incident cases of type 2 diabetes. The pooled RRR suggested a similar risk of type 2 diabetes associated with smoking in women compared with men (RRR: 0.98, 95% confidence interval [CI]: 0.96–1.01). Furthermore, no significant sex difference in the RR was found between former smokers and those who had never smoked (RRR: 0.98, 95% CI: 0.92–1.04). Conclusions The findings of this meta-analysis indicate that female smokers had similar risk of type 2 diabetes with male smokers.

Empirical Evaluation of the McMi—III Personality Disorder Scales

2003 ◽  
Vol 92 (2) ◽  
pp. 627-642 ◽  
Author(s):  
Gina Rossi ◽  
Claudia Hauben ◽  
Iris van den Brande ◽  
Hedwig Sloore
Keyword(s):  
Personality Disorder ◽  
Personality Disorders ◽  
Discriminant Validity ◽  
Empirical Evaluation ◽  
Base Rate ◽  
Prevalence Rates ◽  
Multimethod Approach ◽  
Personality Disorder Scales ◽  
Screening Device

The MCMI–III personality disorder scales were empirically validated with a sample of 870 clinical patients and inmates. Prevalence rates of personality disorders were in general lower on the MCMI–III than clinical ratings, but trait prevalence was generally higher; thus a base rate of 75 on the MCMI–III could be a guideline in the screening of trait prevalence. However, the sensitivity of some MCMI–III scales was very low. Moreover, the correlations of most personality disorder scales of the MCMI–III were significant and positive with corresponding measures on clinical ratings and MMPI-2 personality disorder scales, but these were, in general, not significantly higher than some other correlations. As a consequence the discriminant validity seems to be questionable. The MCMI–III alone cannot be used as a diagnostic inventory, but the test could be useful as a screening device as a part of a multimethod approach that allows aggregation over measures in making diagnostic decisions.

scholarly journals Dairy consumption and CVD: a systematic review and meta-analysis

2016 ◽  
Vol 115 (4) ◽  
pp. 737-750 ◽  
Author(s):  
Dominik D. Alexander ◽  
Lauren C. Bylsma ◽  
Ashley J. Vargas ◽  
Sarah S. Cohen ◽  
Abigail Doucette ◽  
...  
Keyword(s):  
Cohort Studies ◽  
Dose Response ◽  
Prospective Cohort ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Sensitivity Analyses ◽  
Dairy Intake ◽  
Prospective Cohort Studies ◽  
Dairy Consumption ◽  
Risk Estimates

AbstractInverse associations between dairy consumption and CVD have been reported in several epidemiological studies. Our objective was to conduct a meta-analysis of prospective cohort studies of dairy intake and CVD. A comprehensive literature search was conducted to identify studies that reported risk estimates for total dairy intake, individual dairy products, low/full-fat dairy intake, Ca from dairy sources and CVD, CHD and stroke. Random-effects meta-analyses were used to generate summary relative risk estimates (SRRE) for high v. low intake and stratified intake dose–response analyses. Additional dose–response analyses were performed. Heterogeneity was examined in sub-group and sensitivity analyses. In total, thirty-one unique cohort studies were identified and included in the meta-analysis. Several statistically significant SRRE below 1.0 were observed, namely for total dairy intake and stroke (SRRE=0·91; 95 % CI 0·83, 0·99), cheese intake and CHD (SRRE=0·82; 95 % CI 0·72, 0·93) and stroke (SRRE=0·87; 95 % CI 0·77, 0·99), and Ca from dairy sources and stroke (SRRE=0·69; 95 % CI 0·60, 0·81). However, there was little evidence for inverse dose–response relationships between the dairy variables and CHD and stroke after adjusting for within-study covariance. The results of this meta-analysis of prospective cohort studies have shown that dairy consumption may be associated with reduced risks of CVD, although additional data are needed to more comprehensively examine potential dose–response patterns.

scholarly journals Current evidence for anesthesia management during endovascular stroke therapy: updated systematic review and meta-analysis

2018 ◽  
Vol 11 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Nitin Goyal ◽  
Konark Malhotra ◽  
Muhammad F Ishfaq ◽  
Georgios Tsivgoulis ◽  
Christopher Nickele ◽  
...  
Keyword(s):  
Systematic Review ◽  
Clinical Outcomes ◽  
Meta Analysis ◽  
Anesthetic Management ◽  
Functional Independence ◽  
Sensitivity Analyses ◽  
Current Evidence ◽  
Vessel Occlusion ◽  
Random Effects Models ◽  
Randomized Studies

IntroductionDebate continues about the optimal anesthetic management for patients undergoing endovascular treatment (ET) of acute ischemic stroke due to emergent large vessel occlusion.ObjectiveTo compare, using current evidence, the clinical outcomes and procedural characteristics among patients undergoing general anesthesia (GA) and local or monitored anesthesia (non-GA).MethodsWe performed a systematic review and meta-analysis of all available studies that involved the use of stent retrievers for ET (stentriever group). Additionally, we included studies that were published in 2015 and later, and compared the clinical outcomes among the studies using stentrievers or no stentrievers (pre-stentriever group). Outcome variables included functional independence (FI; modified Rankin Scale scores of 0–2), symptomatic hemorrhage, mortality, procedure duration, and vascular and respiratory complications. We calculated pooled odds ratios and 95% CIs using random-effects models.ResultsSixteen studies (three randomized controlled clinical trials (RCTs) and 13 non-randomized studies) were identified comprising 5836 patients. Although non-GA was associated with higher odds of 3-month FI (OR=1.57; 95% CI 1.17 to 2.10; P=0.003) and lower odds of 3-month mortality (OR=0.62; 95% CI 0.47 to 0.82; P=0.0006, substantial heterogeneity was noted across included trials. Sensitivity analyses of RCTs showed that non-GA was inversely associated with FI (OR=0.55; 95% CI 0.34 to 0.89; P=0.01; I2=15%), while no association was noted with mortality (OR=1.36; 95% CI 0.79 to 2.34; P=0.27; I2=0%).ConclusionOur updated meta-analysis demonstrates favorable results with non-GA, probably owing to inclusion of non-randomized studies. Recent single-center RCTs indicate that GA is associated with higher odds of FI at 3 months, while other outcomes are similar between the two groups.

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