title: Estimating the burden of acute gastrointestinal illness in the community in Gansu Province, northwest China, 2012-2013.
abstract: BACKGROUND
  Acute gastrointestinal illness (AGI) imposes considerable social and economic burden on low and middle-income countries. This study aimed to estimate the occurrence, distribution, and burden of self-reported AGI in Gansu Province of northwest China, where economic growth rates have lagged far behind those of other regions in China and systematic studies to investigate the burden of AGI are still lacking.
  
  
  METHODS
  Twelve-month, retrospective face-to-face surveys were conducted in three sentinel sites between June 2012 and May 2013. Respondents were asked if they had experienced diarrhoea or vomiting in the 28 days prior to the interview.
  
  
  RESULTS
  In total, 2094 interviews were completed. The adjusted monthly prevalence was 8.5% with an incidence rate of 1.16 episodes of AGI per person-year. Healthcare was sought by 73.8% of those reporting illness. Of the cases who visited a doctor, 50.5% submitted a stool sample. The use of antibiotics was reported by 65.6% of the cases and 53.3% took antidiarrhoeals. In the multivariable model, age, household income and sentinel site were significant risk factors of being a case of AGI.
  
  
  CONCLUSIONS
  The burden of AGI was considerable in Gansu Province of northwest China. Ongoing research to identify the main causes of AGI is needed for more accurate estimate of the burden of AGI in this region.
authors.forename: Xiang-Lai
authors.initials: XL
authors.lastname: Sang
authors.forename: Xiao-Cheng
authors.initials: XC
authors.lastname: Liang
authors.affiliation: Institute of Food Safety, Gansu Provincial Center for Disease Control and Prevention, No, 230 Dong Gang West Road, Chengguan District, Lanzhou 730030 Gansu Province, China. chenyan@cfsa.net.cn.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.forename: Jian-Dong
authors.initials: JD
authors.lastname: Li
authors.forename: Jing-Guang
authors.initials: JG
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Bai
authors.forename: Jian-Yun
authors.initials: JY
authors.lastname: Sun
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D017281:Cost of Illness; D003430:Cross-Sectional Studies; D003967:Diarrhea / Q000453:epidemiology; D005260:Female; D005767:Gastrointestinal Diseases / Q000191:economics / Q000453:epidemiology*; D006301:Health Services Needs and Demand; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D057566:Self Report
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