Table 1.
Study population characteristics found in precampaign and postcampaign serosurveys
| Precampaign (N = 1105), % | Postcampaign (N = 543), % | P value | |
|---|---|---|---|
| Age groups | < 0.001 | ||
| 0–4 years | 20.0 | 21.7 | |
| 5–9 years | 17.4 | 26.9 | |
| 10–14 years | 13.7 | 17.3 | |
| 15–19 years | 12.0 | 7.4 | |
| 20–49 years | 36.9 | 26.7 | |
| Male (%) | 49.8 | 44.5 | 0.06 |
| Males in each age group | < 0.001 | ||
| 0–4 years | 50.6 | 56.0 | |
| 5–9 years | 50.5 | 48.5 | |
| 10–14 years | 50.5 | 53.1 | |
| 15–19 years | 50.2 | 46.3 | |
| 20–49 years | 48.7 | 25.2 |
Characteristics are presented as weighted percentages to assess whether differences remain after accounting for the serosurvey design, as designated by the P value.