北京市社区人群急性胃肠炎患病状况流行病学调查

A community-based prevalence survey of acute gastroenteritis in Beijing

目的了解北京市社区人群急性胃肠炎的患病状况及其流行特征。方法 2012年4月至2013年3月,采用多阶段抽样方法从北京市6个区抽取部分调查户,每月入户调查其过去4周内急性胃肠炎发病情况及危险因素等内容。结果 12个月共调查10 204人,人群急性胃肠炎月患病率为1.25%（95%CI：1.04~1.47）,发病率为0.16次/人年,加权患病率为1.34%（95%CI：1.12~1.56）,加权发病率为0.17次/人年,估计北京市每年有333.4万人罹患急性胃肠炎。多因素分析结果显示,年龄、文化程度和季节与急性胃肠炎发病有关。58.59%的急性胃肠炎患者怀疑其发病可能为食源性途径。结论北京市急性胃肠炎的疾病负担值得关注,且食源性比例较高,应开展进一步研究准确评估食源性疾病负担。

Objective To understand the epidemiological characteristics of acute gastroenteritis in Beijing.MethodsThe household interview about the incidence,symptoms and risk factors of acute gastroenteritis was conducted among the respondents selected by multi-stage sampling in 6 areas from April 2012 to Match 2013.Results Totally 10 204 people were interviewed.The average monthly prevalence of acute gastroenteritis was 1.25%（95% CI： 1.04-1.47） and the incidence was 0.16 per person-year.The adjusted average monthly prevalence was 1.34%（ 95% CI： 1.12-1.56） and the weighted incidence was 0.17 per person-year.It was estimated that 333.4 thousand cases of acute gastroenteritis occurred every year in Beijing.The disease burden of acute gastroenteritis was heavy in Beijing.In the multivariable model,age,education and season were significant risk factors of AGI.58.59% of the cases were possibly caused by contaminated food.Conclusion The burden of acute gastroenteritis is significant and the ratio of foodborne cases is high.Further research is needed to estimate the burden of foodborne disease by targeted prevention and control measures.