Evidence map›Paper›PMID 36068195›Full record

ArticleTranslational psychiatry2022

Incidence rate of schizophrenia after the Tangshan earthquake in China: a 44-year retrospective birth cohort study.

Yun-Shu Zhang, Wen-Wang Rao, Li-Li Zhang, Hong-Xue Jia, Hao Bi, Hai-Long Wang, Lloyd Balbuena, Ke-Qing Li, Yu-Tao Xiang

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 2 pooled it
0.8field-weighted citation impact, top 28% 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

3 citing papers in PubMed, 2 syntheses or guidelines pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
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

9 authors at 3 institutions in 3 countries.

Yun-Shu Zhang *Hebei Key Laboratory of Major Mental and Behavioral Disorders, Hebei Provincial Mental Health Center, Baoding, Hebei Province, China.
Wen-Wang Rao *Institute of Mental Health, Hebei Provincial Mental Health Center, Baoding, Hebei province, China.ORCID 0000-0002-3514-3082
Li-Li ZhangHebei Key Laboratory of Major Mental and Behavioral Disorders, Hebei Provincial Mental Health Center, Baoding, Hebei Province, China.
Hong-Xue JiaInstitute of Mental Health, Hebei Provincial Mental Health Center, Baoding, Hebei province, China.
Hao BiHebei Key Laboratory of Major Mental and Behavioral Disorders, Hebei Provincial Mental Health Center, Baoding, Hebei Province, China.
Hai-Long WangHebei Key Laboratory of Major Mental and Behavioral Disorders, Hebei Provincial Mental Health Center, Baoding, Hebei Province, China.
Lloyd BalbuenaDepartment of Psychiatry, University of Saskatchewan, Saskatoon, SK, Canada.
Ke-Qing LiHebei Key Laboratory of Major Mental and Behavioral Disorders, Hebei Provincial Mental Health Center, Baoding, Hebei Province, China. likel002@sina.com.ORCID 0000-0002-5684-649X
Yu-Tao XiangUnit of Psychiatry, Department of Public Health and Medicinal Administration, & Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SAR, China. ytxiang@um.edu.mo.
Hebei Mental Health Center · CNUniversity of Macau · MOUniversity of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preliminary evidence indicates that natural disasters are associated with an increased risk for schizophrenia. With few longitudinal studies on earthquakes, this retrospective cohort study examined exposure to the 1976 Tangshan earthquake and the subsequent risk of schizophrenia. Population counts and visits to all nine psychiatric hospitals in Tangshan city were collected. We created three cohort groups by earthquake exposure: infant (August 1972 to July 1976 births), fetal (August 1976 to May 1977 births), and unexposed (June 1977 to May 1981 births). The cumulative incidence of schizophrenia in each cohort was calculated by dividing the number of schizophrenia patients by total births in the corresponding period. Altogether, 6424 schizophrenia patients were identified, with 2786 in the infant group, 663 in the fetal group, and 2975 in the unexposed group. The crude cumulative incidence of schizophrenia in the infant, fetal and unexposed groups were 7.64 (95% confidence interval [CI] = 7.36-7.92), 9.07 (95% CI = 8.38-9.76), and 7.40 (95% CI = 7.13-7.66) per thousand population respectively. Adjusted for mortality, the corresponding figures were 7.73 (95% CI = 7.44-8.01), 9.30 (95% CI = 8.60-10.01) and 7.44 (95% CI = 7.18-7.71) per thousand population respectively. The mortality-adjusted risk ratio (aRR) was 1.25 (95% CI = 1.15-1.36) between fetal and unexposed groups (χ

Indexed as

EarthquakesSchizophreniaBirth CohortCohort StudiesHumansIncidenceMaleRetrospective Studies

Identifiers

PMID36068195
PMCPMC9448782
OpenAlexW4294754742

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.