Table 1.
Characteristics of Participants in Each Survey
| Characteristic | Prevaccination 2010 |
Postvaccination 2012 |
||
|---|---|---|---|---|
| No. | % | No. | % | |
| Age groupa,b | ||||
| >1 y | 31 | 4.0 | … | … |
| 1–2 y | 59 | 7.6 | 50 | 6.3 |
| 3–5 y | 115 | 14.8 | 151 | 18.9 |
| 6–10 y | 107 | 13.8 | 200 | 25.0 |
| 11–17 y | 123 | 15.9 | 200 | 25.0 |
| 18–29 y | 141 | 18.2 | 199 | 24.9 |
| >29 y | 199 | 25.7 | … | … |
| Sexb | ||||
| Females | 416 | 54.1 | 457 | 57.1 |
| Residencec | ||||
| Urban | 394 | 49.7 | 800 | 100.0 |
| Residents per household | ||||
| >15 people | 311 | 40.6 | 335 | 41.9 |
| Rooms per household | ||||
| >7 | 329 | 42.7 | 308 | 38.5 |
a The age given is age at enrollment for 2010 survey and age as of 1 December 2010 for postvaccination survey.
b Missing age and sex for 18 participants prevaccination.
c Compared to living in a rural area.