Table 2 Bivariable and final model of multivariable analysis of risk factors, 6 January 2008*.
From: Food-borne norovirus-outbreak at a military base, Germany, 2009
Exposed | Non-exposed | Bivariable | Multivariable | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Exposure | Total | Cases | AR% | Total | Cases | AR% | AF/PF % | RR | 95% CI | P | aOR | 95% CI | P |
Salad bar | 50 | 9 | 18.0 | 56 | 2 | 3.6 | 80.2 | 5.0 | 1.1-22.2 | 0.02 | 8.1 | 1.5-45.4 | 0.02 |
Potatoes | 39 | 1 | 2.6 | 57 | 10 | 17.5 | 585.2 | 0.2 | 0.0-1.1 | 0.02 | |||
Schnitzel | 49 | 1 | 2.0 | 51 | 10 | 19.6 | 861.3 | 0.1 | 0.0-0.8 | 0.01 | 0.1 | 0.0-1.4 | 0.09 |
Pasta | 48 | 8 | 16.7 | 55 | 3 | 5.5 | 67.3 | 3.1 | 0.9-10.9 | 0.07 | 1.8 | 0.3-12.0 | 0.58 |
Fish | 7 | 2 | 28.6 | 90 | 9 | 10.0 | 65.0 | 2.9 | 0.8-10.1 | 0.14 | |||
Vegetables | 26 | 1 | 3.9 | 68 | 10 | 14.7 | 282.1 | 0.3 | 0.0-1.9 | 0.14 | |||
Contact to ill persons or vomit | 28 | 1 | 3.6 | 78 | 10 | 12.8 | 259.1 | 0.3 | 0.0-2.1 | 0.17 | 0.2 | 0.0-1.8 | 0.15 |
Yoghurt | 17 | 0 | 0.0 | 78 | 11 | 14.1 | NC | 0.0 | ∞-∞ | 0.10 | |||