Table 2. Association of risk factors with acquisition of illness among all survey takers (n = 241) and multiple regression analysis of risk factors for acquisition of diarrheal illness.

			Univariate Analysis		Multivariate Analysis
Question	Yes/No	Diarrhea	Risk Ratio	p-value	Risk Ratio	95% CL	p-value
Arriving on base within past two weeks	Yes	60 (33.7%)	2.79	0.001	2.85	1.31–6.18	0.008
	No	7 (12.1%)
Eat off base in last two weeks?	Yes	50 (31.8%)	1.51	0.077
	No	17 (20.9%)
Were off base foods cooked?	Yes	43 (29.2%)	0.35	0.005*
	No	5 (83.3%)
Were off base foods served hot?	Yes	42 (29.1%)	0.41	0.007*
	No	7 (70.0%)
Did you add hot sauces to off-base foods?	Yes	11 (23.4%)	0.67	0.157
	No	37 (34.9%)
Eat at street vendors off base in last two weeks?	Yes	28 (28.2%)	1.01	0.938
	No	37 (27.8%)
Eat at local vendors (non-DFAC) on-base?	Yes	59 (32.7%)	4.01	<0.001	3.91	1.50–10.18	0.0051
	No	4 (8.1%)
Drink non-bottled beverages off-base in last two weeks?	Yes	15 (37.5%)	1.41	0.157
	No	51 (26.4%)