Table 2.

C. jejuni and C. coli isolated as single pathogens and from mixed infections via culture in traveler’s diarrhea cases and asymptomatic controls from CIWEC Travel Medicine Clinic, Kathmandu, Nepal and Bamrungrad International Hospital, Bangkok, Thailand

CIWEC Travel Medicine Clinic, Nepal	Cases (n = 480)	Controls (n = 209)	OR (95% CI)	P
C. jejuni: single pathogen	38 (7.9%)	6 (2.9%)	6.5 (2.2–19.1)	0.0007
C. coli: single pathogen	7 (1.5%)	3 (1.4%)	1.0 (0.3–3.9)	NS
C. jejuni: mixed infection	39 (8.1%)	4 (1.9%)	20.2 (2.7–152.9)	0.0036
C. coli: mixed infection	6 (1.3%)	2 (0.9%)	1.3 (0.3–6.6)	NS

Bamrungrad International Hospital, Thailand	Cases (n = 173)	Controls (n = 165)	OR (95% CI)	P
C. jejuni: single pathogen	24 (13.9%)	4 (2.4%)	2.9 (1.2–6.9)	0.01
C. coli: single pathogen	4 (2.3%)	0	N/A	N/A
C. jejuni: mixed infection	19 (11%)	1 (0.6)	20.2 (2.7–152.9)	0.0036
C. coli: mixed infection	5 (2.9%)	0	N/A	N/A

Odds ratios (OR) and 95% confidence intervals (95% CI) were calculated using multivariate logistic regression with a significant P < 0.05

NS not significant

N/A not applicable for statistical analysis