Table 1 Characteristics by study group at baseline

Total population in core and buffer areas

33,820

32,861

38,081

31,138

Population in core area of clusters

15,947

16,282

16,358

14,845

Households in the lowest socioeconomic tercile

31.5% (27.2–35.7), 146/464

31.1% (27.1–35.0), 166/534

37.5% (33.3–41.6),198/528

34.9% (30.6–39.2), 163/467

Long-lasting insecticidal nets use in all participants

30.1% (28.5–31.7), 902/2996

26.3% (24.8–27.9), 810/3078

27.6% (26.1–29.2), 882/3197

26.3% (24.8–27.9), 810/3078

Malaria infection prevalence in children aged 6 months to 14 years, n/N

67.8% (64.7–70.9), 600/885

61.1% (58.1–64.2), 606/991

66.6% (64.0–69.5), 678/1018

63.6% (60.6–66.6), 615/967

Mean indoor vector per house per night, N

17.0 (0–34.7), 129

37.0 (4.0–70.1), 119

11.8 (0–24.7), 117

43.6 (9.7–77.6), 129