Volume 9, Number 10—October 2003
Research
Hazards of Healthy Living: Bottled Water and Salad Vegetables as Risk Factors for Campylobacter Infection
Meirion R. Evans*
, C. Donald Ribeiro†, and Roland L. Salmon‡
, C. Donald Ribeiro†, and Roland L. Salmon‡Table 1
Comparison of personal and household factors in campylobacter case-patients and non-case-patientsa
| Variable | Case-patients
(n=213) |
Non-case-patients
(n=1144) |
OR (95% CI) | p value | ||
|---|---|---|---|---|---|---|
| No. | (%) | No. | (%) | |||
| Female |
99 |
(46.5) |
504 |
(44.1) |
1.10 (0.82 to 1.48) |
0.56 |
| Age group |
||||||
| 0–14 y |
26 |
(12.2) |
328 |
(28.7) |
Reference |
|
| 15–44 y |
84 |
(39.4) |
323 |
(28.2) |
3.28 (2.06 to 5.23) |
<0.001 |
| 45–64 y |
72 |
(33.8) |
231 |
(20.2) |
3.93 (2.44 to 6.35) |
<0.001 |
| >65 y |
30 |
(14.1) |
255 |
(22.3) |
1.48 (0.86 to 2.57) |
0.16 |
| Employment status |
||||||
| Employed |
92 |
(43.2) |
352 |
(30.8) |
Reference |
|
| Full-time student |
27 |
(12.7) |
82 |
(7.2) |
1.26 (0.77 to 2.06) |
0.36 |
| Caring for home and family |
15 |
(7.0) |
84 |
(7.3) |
0.68 (0.38 to 1.23) |
0.21 |
| Other |
45 |
(21.1) |
453 |
(39.6) |
0.38 (0.26 to 0.56) |
<0.001 |
| Unemployed |
10 |
(4.7) |
31 |
(2.7) |
1.23 (0.58 to 2.61) |
0.58 |
| Long-term illness |
16 |
(7.5) |
84 |
(7.3) |
0.53 (0.24 to 1.14) |
0.29 |
| Mean no. of other people in household (median, range) |
3.0 |
(3)
(1-12) |
3.2 |
(3)
(1-36) |
0.98b |
|
| Child <5 y of age in the household |
28 |
(13.1) |
326 |
(28.5) |
0.38 (0.25 to 0.57) |
<0.0001 |
| Mean no. of children <5 y of age in household (median, range) |
0.21 |
(0)
(0-5) |
0.41 |
(0)
(0-5) |
<0.0001b |
|
| Other ill person in the household |
15 |
(7.0) |
112 |
(9.8) |
0.70 (0.39 to 1.20) |
0.26 |
| Mean no. of other ill people in household (median, range) |
0.09 |
(0)
(0-3) |
0.15 |
(0)
(0-6) |
0.20b |
|
| Child caregiver |
3 |
(1.4) |
25 |
(2.2) |
0.64 (0.15 to 1.94) |
0.61c |
| Food handler | 8 | (3.8) | 61 | (5.3) | 0.69(0.31 to 1.41) | 0.43 |
aOR, odds ratio; CI, confidence interval.
bMann-Whitney U test.
cFisher exact test.
