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 2012–May 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. |