Table 1.

Characteristics of the participants in the pre-vaccine and vaccine periods

Characteristic	Pre-vaccine N = 726	Vaccine N = 826	P value for difference*
Personal characteristics
Age (mean in months [SD])	25.3 [17.3]	28.9 [16.7]	< 0.001
Sex, % male	51.2% (372/726)	50.4% (416/826)	0.73
Breastfeeding upon study enrollment	36.4% (247/679)†	34.0% (281/826)	0.34
Received at least one dose of rotavirus vaccine	0.0% (0/726)	67.3% (556/826)	< 0.001
Household characteristics
Indoor municipal water source	94.1% (683/726)	97.0% (801/826)	0.05
Indoor toilet	46.7% (339/726)	80.1% (662/826)	< 0.001
Concrete or tile floor (versus dirt floor)	72.9% (529/726)	77.2% (638/826)	0.008
Family characteristics
Mother completed fourth grade	82.4% (598/726)	90.1% (744/826)	0.007
Mother employed	33.3% (242/726)	40.0% (330/826)	< 0.001

^*P values based on mixed effects logistic or linear regression models with each characteristic as the outcome and an indicator for vaccine period as the sole covariate.

^†6% of respondents chose not to answer this question.