Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home

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*Comments to Author , C. Donald Ribeiro†, and Roland L. Salmon‡
Author affiliations: *University of Wales College of Medicine, Cardiff, United Kingdom; †Cardiff Public Health Laboratory, Cardiff, United Kingdom; ‡Public Health Laboratory Service Communicable Disease Surveillance Centre (Wales), Cardiff, United Kingdom

Main Article

Table 3

Multiple logistic regression analysis showing independently associated variables in campylobacter case-patients and non-case-patientsa

Variable Adjustment Ab

Adjustment Bc

Adjustment Cd

Attributable fraction (%) (95% CI)
OR
(95% CI) p value Odds ratio
(95% CI) p value OR
(95% CI) p value
Lamb
0.67 (0.46 to 0.99)
0.05
0.69 (0.48 to 1.00)
0.05
0.68 (0.47 to 0.98)
0.04

Chicken
1.61 (1.03 to 2.50)
0.04
2.01 (1.35 to 3.00)
0.001
1.79 (1.19 to 2.69)
0.005
31 (9 to 48)
Salad vegetables
1.73 (1.09 to 2.73)
0.02
1.99 (1.40 to 2.82)
<0.001
1.53 (1.06 to 2.21)
0.02
21 (2 to 36)
Bottled water
1.39 (0.98 to 1.96)
0.06
1.57 (1.15 to 2.14)
0.005
1.41 (1.02 to 1.95)
0.04
12 (0 to 23)
Ate at a fried chicken outlet
1.82 (1.00 to 3.30)
0.05
2.08 (1.20 to 3.62)
0.01
1.94 (1.10 to 3.42)
0.02
4 (0 to 7)
Had contact with cows or calves
5.44 (1.05 to 28.10)
0.04
3.98 (1.08 to 14.65)
0.04
5.07 (1.30 to 19.74)
0.02
1 (0 to 3)
Own a pet rabbit
0.46 (0.20 to 1.05)
0.07
0.36 (0.16 to 0.81)
0.01
0.37 (0.16 to 0.83)
0.015

History of lower bowel problems
0.55 (0.34 to 0.90)
0.02
0.48 (0.29 to 0.79)
0.004
0.45 (0.27 to 0.73)
0.001

Had antibiotic in month before illness 0.34 (0.18 to 0.65) 0.001 0.41 (0.21 to 0.78) 0.006 0.40 (0.21 to 0.77) 0.006

aOR; odds ratio; CI, confidence interval.
bAdjustment A, adjusted for potential confounders within each exposure group.
cAdjustment B, adjusted for other significant variables from all four exposure groups.
dAdjustment C, adjusted for age group.

Main Article

Top of Page

USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO