Table 2. Characteristics of study populations in randomly versus purposively selected PSUs, by number of households, household size, age groups, and survey location (convenience or household surveys).
| Randomly Selected PSUs | Purposively Selected PSUs | |
|---|---|---|
| Total PSUs Total households sampled |
30 437 |
5 62 |
| Mean (range) | Mean (range) | |
| Households per PSU | 14.9 (9–20) | 13.3 (6–15) |
| Household size (persons aged ≥5 years) | 4.8 (1–26) | 5.2 (1–13) |
| Participants per PSU (all ages): | 113.8 (99–128) | 106.4 (75–117) |
| Age 5–9 years (total) | 56.2 (40–75) | 51.2 (36–59) |
| Convenience survey | 44.5 (29–61) | 41.2 (30–49) |
| Household survey | 11.7 (5–22) | 10.0 (6–13) |
| Age ≥10 years | ||
| Household survey | 57.6 (43–73) | 54.2 (39–59) |