Table 1 Bivariable analysis of risk factors*.
From: Food-borne norovirus-outbreak at a military base, Germany, 2009
Exposed | Non-exposed | Bivariable | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Exposure | Total | Cases | AR% | Total | Cases | AR% | AF% | RR | 95% CI | P |
Eating any meal at canteen | 133 | 25 | 18.8 | 45 | 2 | 4.4 | 76.4 | 4.3 | 1.1-17.4 | 0.02 |
Eating any breakfast at canteen | 62 | 9 | 14.5 | 116 | 18 | 15.5 | -6.9 | 0.9 | 0.5-2.0 | 0.88 |
Eating any lunch at canteen | 125 | 25 | 20.0 | 53 | 2 | 3.8 | 81.2 | 5.2 | 1.3-21.3 | 0.01 |
Eating any dinner at canteen | 49 | 9 | 18.4 | 129 | 18 | 14.0 | 24.1 | 1.3 | 0.6-2.7 | 0.49 |
Contact to ill persons or vomit | 35 | 8 | 22.9 | 143 | 19 | 13.3 | 41.9 | 1.7 | 0.8-3.6 | 0.17 |
Staying at military base overnight | 67 | 11 | 16.4 | 108 | 16 | 14.8 | 9.8 | 1.1 | 0.6-2.2 | 0.78 |