Risk factors for pneumococcal acquisition (Poisson regression).

a Reported at least once during the study. Daycare defined as ≥4 hours/week outside of home with ≥2 members of other families.b From chart review; all other covariates ascertained via interview.c All models adjusted for month of study entry as a categorical variable.d Estimates additionally adjusted for # persons in household, crowding (number of persons per sleeping room), presence of smoker, presence of wood burning stove, and presence of running water in house. None of the other variables examined had a significant association with either individual or household carriage.