Table 1 Population characteristics from six cross-sectional surveys (N = 22,132)
Population characteristics | Rainy 2012 | Dry 2012 | Rainy 2013 | Dry 2013 | Rainy 2014 | Dry 2014 |
|---|---|---|---|---|---|---|
N | 3475 | 3873 | 3767 | 3680 | 3590 | 3747 |
 Low transmission | 900 | 1049 | 968 | 973 | 943 | 1011 |
 Moderate transmission | 1425 | 1563 | 1561 | 1485 | 1468 | 1520 |
 High transmission | 1150 | 1261 | 1238 | 1222 | 1179 | 1216 |
Age category | ||||||
 Under 5 years (n = 3856) | 17.7% | 17.7% | 17.8% | 16.8% | 17.5% | 17.0% |
 5–15 years (n = 7358) | 30.2% | 31.7% | 33.3% | 34.4% | 33.9% | 36.0% |
 Over 15 years (n = 10,918) | 52.1% | 50.6% | 48.9% | 48.8% | 48.6% | 47.0% |
Per cent of households that own one or more netsb | 51.4% | 83.1% | 87.5% | 83.2% | 81.3% | 70.9% |
Household net ownership | ||||||
 Low transmissionb | 55.7% | 75.7% | 82.6% | 79.8% | 75.4% | 72.6% |
 Moderate transmissionb | 51.8% | 80.1% | 86.0% | 84.7% | 84.9% | 69.5% |
 High transmissionb | 47.4% | 92.7% | 93.4% | 84.3% | 81.7% | 71.2% |
 Per cent of children under 5 who use netsb | 47.0% | 68.1% | 77.8% | 66.6% | 77.7% | 53.1% |
 Per cent of school-aged children who use netsb | 24.1% | 49.2% | 59.4% | 45.5% | 52.0% | 33.0% |
 Per cent of adults over age 15 who netsb | 37.1% | 60.6% | 73.7% | 60.9% | 68.5% | 49.4% |
Parasite prevalence (rtPCR) | ||||||
 Children under 5b | 10.8% | 7.7% | 13.0% | 5.6% | 17.0% | 9.8% |
 School-aged childrenb | 28.3%a | 21.9%a | 28.4%a | 17.5%a | 24.2%a | 18.2%a |
 Adults over age 15b | 13.4% | 8.1% | 13.5% | 7.4% | 17.2% | 9.0% |
Parasite prevalence (microscopy) | ||||||
 Children under 5b | 8.9% | 5.7% | 10.3% | 5.1% | 10.0% | 8.1% |
 School-aged childrenb | 19.7% | 10.5% | 22.1% | 11.1% | 17.8% | 10.8% |
 Adults over age 15b | 6.6% | 2.7% | 7.3% | 3.2% | 8.8% | 3.1% |