Table 3 Impact of cluster-level bednet usage on mosquito mortality. Results from generalised mixed-effect models examining the impact of cluster-level bednet usage on mosquito mortality

No. of clusters included (year)

59 (2012); 87 (2013); 143 (2014); 99 (2015); 80 (2016)

19 (2015)

22 (2013); 26 (2014)

80 (2015); 80 (2016)

13(2012); 41 (2014)

46 (2012); 65 (2013); 76 (2014)

Mean net usage (range) (%)

74.9 (52.5–100)

67.8 (7.0–100)

89.9 (60.9–100)

94.2 (73.7–100)

78.6 (0–100)

Effect of cluster-level net usage on mosquito mortality, OR (95% CI)

< 40%

1 (reference)

–

1 (reference)

–

–

1 (reference)

40–80%

1.03 (0.89–1.19)

1 (reference)

1.61 (1.21–2.14)

1 (reference)

1 (reference)

0.69 (0.58–0.83)

> 80%

0.65 (0.57–0.74)

1.59 (0.75–3.37)

1.40 (1.08–1.82)

0.36 (0.29–0.44)

2.38 (0.56–10.1)

0.45 (0.38–0.53)

P-value

<0.001

0.225

<0.001

<0.001

0.241

<0.001