Evidence map›Paper›PMID 28457602›Full record

SynthesisJournal of epidemiology2017

Infectious diarrheal disease caused by contaminated well water in Chinese schools: A systematic review and meta-analysis.

Zheyuan Ding, Yujia Zhai, Chen Wu, Haocheng Wu, Qinbao Lu, Junfen Lin, Fan He

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of epidemiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.4field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
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  3. Epidemiology of Norovirus Outbreaks in Kindergartens, Primary Schools, and Junior High Schools in Xi'an, China, From October 2020 to February 2023.Medical science monitor : international medical journal of experimental and clinical research · 2025
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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

7 authors at 1 institution in 1 country.

Zheyuan DingDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Yujia ZhaiDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Chen WuDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Haocheng WuDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Qinbao LuDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Junfen LinDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China.
Fan HeDepartment of Public Health Surveillance & Advisory, Zhejiang Provincial Center for Disease Control and Prevention, China. Electronic address: fhe@cdc.zj.cn.
Zhejiang Center for Disease Control and Prevention · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn China, waterborne outbreaks of infectious diarrheal disease mainly occur in schools, and contaminated well water is a common source of pathogens. The objective of this review was to present the attack rates, durations of outbreak, pathogens of infectious diarrheal disease, and sanitary conditions of wells in primary and secondary schools in China, and to analyze risk factors and susceptibility of school children.

methodsRelevant articles and reports were identified by searching PubMed, Web of Science, China National Knowledge Infrastructure, China Information System for Disease Control and Prevention, and the Chinese Field Epidemiology Training Program. Essential information, including urban/rural areas, school types, attack rates, pathogens, durations of outbreak, report intervals, and interventions were extracted from the eligible articles. Wilcoxon signed-rank test, Kruskal-Wallis H test, and Spearman correlation test were conducted in statistical analyses. Sex- and age-specific attack rate ratios were calculated as pooled effect sizes.

resultsWe screened 2188 articles and retrieved data of 85 outbreaks from 1987 to 2014. Attack rates of outbreaks in rural areas (median, 12.63 cases/100 persons) and in primary schools (median, 14.54 cases/100 persons) were higher than those in urban areas (median, 5.62 cases/100 persons) and in secondary schools (median, 8.74 cases/100 persons) (P = 0.004 and P = 0.013, respectively). Shigella, pathogenic Escherichia coli, and norovirus were the most common pathogens. Boys tended toward higher attack rates than girls (sex-specific attack rate ratio, 1.13; 95% CI, 1.00-1.29, P = 0.05). Unsanitary conditions of water wells were reported frequently, and unhealthy behavior habits were common in students.

conclusionSchool children were susceptible to waterborne disease in China. Chinese government should make efforts to improve access to safe water in schools. Health education promotion and conscientiousness of school leaders and teachers should be enhanced.

Indexed as

SchoolsWater MicrobiologyWater WellsChildChinaDisease OutbreaksDysenteryHumansIncidenceRisk FactorsInfectious diarrheaMeta-analysisSchoolWaterborne outbreak

Identifiers

PMID28457602
PMCPMC5463023
OpenAlexW2609183578

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.