TABLE 1

Characteristics of Infants Enrolled in the Study (n = 450)

CharacteristicsValue
Gender, M/F220/230
Presence of other children in the household, n (%)224 (50)
Maternal education ≤8 y, n (%)172 (38)
Maternal smoking, n (%)118 (26)
Fever in family members in the 3 d before immunization, n (%)14 (3)
First vaccine dose, n (%)206 (46)
    Age, mean (SD), d101 (90)
    Breastfeeding, n (%)
        Exclusive84 (41)
        Partial60 (29)
        None62 (30)
Second vaccine dose, n (%)244 (54)
    Age, mean (SD), d176 (86)
    Breastfeeding, n (%)
        Exclusive36 (15)
        Partial94 (38)
        None114 (47)