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Table 2 Multivariable model of risk factors associated with acute gastrointestinal illness in the 4 weeks prior to interview in Gansu Province, northwest China, June 2012May 2013

From: Estimating the burden of acute gastrointestinal illness in the community in Gansu Province, northwest China, 2012–2013

Variable OR 95% CI P-value
Age (years)    < 0.01
  0–4 1.89 0.75–4.80 0.18
  5–14 3.35 1.56–7.21 < 0.01
  15–24 2.25 0.98–5.14 0.06
  25–44 0.87 0.52–1.44 0.58
  45–64 Ref. Ref. Ref.
  ≥ 65 1.17 0.58–2.36 0.66
Yearly household income (CNY)    < 0.01
  0–19999 Ref. Ref. Ref.
  20000–49999 2.34 1.29–4.25 < 0.01
  ≥ 50000 4.05 1.89–8.69 < 0.01
Sentinel site    < 0.01
  Baiyin 0.10 0.04–0.25 < 0.01
  Liangzhou 0.23 0.15–0.35 < 0.01
  Qingcheng Ref. Ref. Ref.
  1. OR, Odds ratio; CI, Confidence interval; CNY, China Yuan.
  2. Hosmer and Lemeshow test (p = 0.156).