Table 1.
Demographic Characteristics of the Study Participants (Total Vaccinated Cohort)
| Characteristic | MMR-RIT Group (n = 3714) | MMR II Group (n = 1289) |
|---|---|---|
| Age at dose 1 (mean [SD]) (months) | 12.3 (0.7) | 12.3 (0.7) |
| Sex (n [%])a | ||
| Female | 1816 (48.9) | 618 (47.9) |
| Geographic ancestry (n [%]) | ||
| White-Caucasian/European heritage | 2814 (75.8) | 970 (75.3) |
| African heritage/African American | 169 (4.6) | 70 (5.4) |
| Asian heritage | 127 (3.4) | 46 (3.6) |
| American Indian or Alaskan native | 95 (2.6) | 31 (2.4) |
| Other | 509 (13.7) | 172 (13.3) |
Abbreviation: SD, standard deviation.
aPercentages shown are of children in the category.