Table. Frequency of selected exposures among case-patients and controls, Salmonella Typhimurium DT160 outbreak, New Zealand, 2001a.
| Exposure |
No. (%) |
Matched OR | 95% CI | p value | |
|---|---|---|---|---|---|
| Case-patients n = 119 | Controls n = 235 | ||||
| Direct handling of a dead wild birds |
13 (10.9) |
3 (1.3) |
12.28 |
2.76 to 54.63 |
0.001 |
| Exposure to person with D&V in household in 3 d before illness in case-patient |
7 (5.9) |
3 (1.3) |
4.67 |
1.21 to 18.05 |
0.03 |
| Exposure to person with D&V in any setting in 3 d before illness in case-patient |
14 (11.8) |
8 (3.4) |
3.81 |
1.53 to 9.49 |
0.004 |
| Exposure to person with D&V in household in 28 d before illness in case-patient |
11 (9.2) |
8 (3.4) |
3.11 |
1.13 to 8.54 |
0.03 |
| Exposure to person with D&V in any setting in 28 d before illness in case-patient |
28 (23.5) |
20 (8.5) |
3.05 |
1.64 to 5.69 |
<0.001 |
| Consumption of food at a large gathering |
24 (20.2) |
23 (9.8) |
2.44 |
1.27 to 4.68 |
0.007 |
| Consumption of any fast food |
69 (58.0) |
111 (47.2) |
1.69 |
1.04 to 2.75 |
0.04 |
| Drinking of roof-collected rainwater |
12 (10.1) |
19 (8.1) |
2.35 |
0.55 to 10.05 |
0.25 |
| Consumption of raw eggs | 5 (4.2) | 3 (1.3) | 3.33 | 0.80 to 13.95 | 0.10 |
aDT, definitive type; D&V, diarrhea and vomiting; OR, odds ratio; CI, confidence interval.