Evidence map›Paper›PMID 23508367›Full record

SynthesisSocial psychiatry and psychiatric epidemiology2013

Prevalence of psychological symptoms in contemporary Chinese rural-to-urban migrant workers: an exploratory meta-analysis of observational studies using the SCL-90-R.

Bao-Liang Zhong, Tie-Bang Liu, Helen F K Chiu, Sandra S M Chan, Chi-Yi Hu, Xue-Feng Hu, Yu-Tao Xiang, Eric D Caine

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Social psychiatry and psychiatric epidemiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
7.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Bao-Liang ZhongDepartment of Psychiatry, Chinese University of Hong Kong, Ground Floor, Multicentre, Tai Po Hospital, Tai Po, N.T., Hong Kong SAR, People's Republic of China.
Tie-Bang Liu
Helen F K Chiu
Sandra S M Chan
Chi-Yi Hu
Xue-Feng Hu
Yu-Tao Xiang
Eric D Caine
Tai Po Hospital · CNShenzhen KangNing Hospital · CNChinese University of Hong Kong · CNUniversity of Rochester Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purpose(1) To estimate the pooled prevalence of psychological symptoms in Chinese migrant workers (CMWs), as measured using the Symptom Checklist-90-R (SCL-90-R) in observational studies conducted in China, and (2) to explore the potential variables associated with the SCL-90-R Global Severity Index (GSI), the overall mental health indicator of CMWs.

methodsWe performed a comprehensive literature search of the major English and Chinese databases (to June 2012). Cross-sectional surveys and case-control studies of CMWs (and controls where appropriate) that reported at least one subscale score of the SCL-90-R were included. Multilevel meta-analysis was used to pool the symptom scores of cross-sectional surveys and mean differences of symptom scores ("Cohen's d" values) between CMWs and controls of case-control studies. Multilevel meta-analysis with ecological- or study-level covariates was used to explore the associations between variables and SCL-90-R GSI score.

resultsThe search yielded 48 cross-sectional surveys (comprising 42,813 CMWs) and seven surveys that included control samples. The pooled psychological symptom scores (95% confidence interval) of CMWs were statistically higher than those of norms from Chinese general population on all scales of SCL-90-R, except for obsessive-compulsive subscale in study quality subgroup analysis. CMWs also scored statistically higher than those of urban counterpart controls on all scales of SCL-90-R. Multilevel regression meta-analysis model revealed that four covariates that accounted for 33.9% of SCL-90-R GSI heterogeneity across all surveys, including: "mean age of study sample," "geographic area," "per capita GDP," and "statutory minimum monthly wage" of study site in implementation year.

conclusionCMWs have more severe psychological symptoms than the general population, and thus, appear to experience higher level of psychological distress. Macro-economic factors may have impact on the overall mental health of CMWs, but the factors that contribute to mental health and mental distress among CMWs remain to be explored and understood.

Indexed as

AdolescentAdultAsian PeopleCase-Control StudiesChinaCross-Sectional StudiesFemaleHumansMaleMental DisordersPrevalenceRegression AnalysisRural PopulationSocioeconomic FactorsStress, PsychologicalSurveys and Questionnaires

Identifiers

PMID23508367
OpenAlexW2075803605

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.