Dataset Information

The incidence of non-affective psychotic disorders in low and middle-income countries: a systematic review and meta-analysis.

ABSTRACT:

Purpose

Global understanding of the epidemiological landscape of non-affective psychotic disorders (NAPD) is predominantly based on studies from high-income countries. We sought to systematically review and meta-analyse all incidence studies conducted in low and middle-income countries (LMICs).

Methods

We systematically searched four databases using terms for NAPD, incidence and LMICs. Citations were eligible for inclusion if: published between 1 January 1960 and 31 May 2022; wholly or partially conducted in an LMIC, and; containing data on NAPD incidence in the general adult population. Two independent raters assessed study quality according to previously published criteria. We conducted a narrative synthesis and random-effects meta-analyses where sufficient studies were available (N ≥ 5).

Results

We retrieved 11 421 records, of which 23 citations met inclusion criteria from 18 unique studies across 19 settings in 10 LMICs. Median study quality was 4 out of 7 (interquartile range: 3-6). The crude incidence of NAPD varied around 4.2 times, from 10.0 per 100,000 person-years (95% confidence interval [CI] 8.7-11.4) in Brazil to 42.0 (95%CI 32.2-54.8) in India, with marked heterogeneity in methodologies and rates. Our 60-year review highlights the dearth of robust evidence on the incidence of psychotic disorders in LMICs.

Conclusion

Without reliable, contemporary estimates of this fundamental cornerstone of population health, it is impossible to understand the true burden, distribution or causes of psychotic disorders in over 87% of the world's population. A new, more equitable global mental health evidence base for NAPD is now urgently required.

SUBMITTER: Bastien RJ

PROVIDER: S-EPMC10066134 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Publications

The incidence of non-affective psychotic disorders in low and middle-income countries: a systematic review and meta-analysis.

Bastien Rayanne John-Baptiste RJ Ding Tao T Gonzalez-Valderrama Alfonso A Valmaggia Lucia L Kirkbride James B JB Jongsma Hannah E HE

Social psychiatry and psychiatric epidemiology 20221222 4

<h4>Purpose</h4>Global understanding of the epidemiological landscape of non-affective psychotic disorders (NAPD) is predominantly based on studies from high-income countries. We sought to systematically review and meta-analyse all incidence studies conducted in low and middle-income countries (LMICs).<h4>Methods</h4>We systematically searched four databases using terms for NAPD, incidence and LMICs. Citations were eligible for inclusion if: published between 1 January 1960 and 31 May 2022; whol ...[more]

PMID: 36547685

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Project description:ObjectivesTo determine the incidence of unintended pregnancy among female sex workers (FSWs) in low-income and middle-income countries (LMICs).DesignWe searched MEDLINE, PsychInfo, Embase and Popline for papers published in English between January 2000 and January 2016, and Web of Science and Proquest for conference abstracts. Meta-analysis was performed on the primary outcomes using random effects models, with subgroup analysis used to explore heterogeneity.ParticipantsEligible studies targeted FSWs aged 15-49 years living or working in an LMIC.Outcome measuresStudies were eligible if they provided data on one of two primary outcomes: incidence of unintended pregnancy and incidence of pregnancy where intention is undefined. Secondary outcomes were also extracted when they were reported in included studies: incidence of induced abortion; incidence of birth; and correlates/predictors of pregnancy or unintended pregnancy.ResultsTwenty-five eligible studies were identified from 3866 articles. Methodological quality was low overall. Unintended pregnancy incidence showed high heterogeneity (I²>95%), ranging from 7.2 to 59.6 per 100 person-years across 10 studies. Study design and duration were found to account for heterogeneity. On subgroup analysis, the three cohort studies in which no intervention was introduced had a pooled incidence of 27.1 per 100 person-years (95% CI 24.4 to 29.8; I2=0%). Incidence of pregnancy (intention undefined) was also highly heterogeneous, ranging from 2.0 to 23.4 per 100 person-years (15 studies).ConclusionsOf the many studies examining FSWs' sexual and reproductive health in LMICs, very few measured pregnancy and fewer assessed pregnancy intention. Incidence varied widely, likely due to differences in study design, duration and baseline population risk, but was high in most studies, representing a considerable concern for this key population. Evidence-based approaches that place greater importance on unintended pregnancy prevention need to be incorporated into existing sexual and reproductive health programmes for FSWs.Prospero registration numberCRD42016029185.

Dataset Information

The incidence of non-affective psychotic disorders in low and middle-income countries: a systematic review and meta-analysis.

Purpose

Methods

Results

Conclusion

Publications

The incidence of non-affective psychotic disorders in low and middle-income countries: a systematic review and meta-analysis.

Similar Datasets

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