Table 1.
Average LLIN use rates, true average protection efficacy of LLINs against exposure to vector bites and proportions of indoors, “before bed” and “after bed” exposure to Anopheles bites for both LLIN users and non-users in 27 villages of the Diébougou area, Burkina Faso
| Season | Age (years) | LLIN use rate (%[min-max]) |
aTrue average LLIN personal protection efficacy (% [min-max]) |
Exposure indoors (%[min-max]) | Exposure before 20:00 h (%[min-max]) | Exposure after 05:00 h (%[min-max]) |
|||
|---|---|---|---|---|---|---|---|---|---|
| LLIN users | Non-users | LLIN users | Non-users | LLIN users | Non-users | ||||
| Dry cold season | 18+ | 92.45 [68–100] | 83.44 [0–92] | 79.92 [0–100] | 96.67 [0–100] | 0.07 [0–0.13] | 0.04 [0–0.34] | 44.99 [0–100] | 8.16 [0–100] |
| 6 to 17 | 95.36 [71–100] | 83.79 [0–92] | 85.44 [0–100] | 97.64 [0–100] | 0.58 [0–1] | 0.12 [0–0.73] | 48.93 [0–100] | 9.01 [0–100] | |
| 0 to 5 | 97.87 [81–100] | 86.73 [0–92] | 90.52 [0–100] | 98.74 [0–100] | 3.93 [0–100] | 0.62 [0–100] | 40.23 [0–100] | 12.20 [0–100] | |
| population | 95.49 [77–100] | 84.93 [0–92] | 85.62 [0–100] | 97.83 [0–100] | 1.66 [0–100] | 0.31 [0–100] | 44.50 [0–100] | 10.11 [0–100] | |
| Dry hot season | 18+ | 92.45 [68–100] | 78.00 [0–92] | 69.57 [19–100] | 93.31 [75–100] | 3.38 [0–26] | 0.82 [0–1] | 57.20 [0–100] | 13.19 [0–100] |
| 6 to 17 | 95.36 [71–100] | 79.88 [2–92] | 82.70 [21–100] | 96.52 [72–100] | 4.57 [0–5] | 0.99 [0–2] | 56.20 [0–100] | 12.27 [0–100] | |
| 0 to 5 | 97.87 [81–100] | 83.63 [13–92] | 88.73 [29–100] | 98.15 [82–100] | 11.30 [0–20] | 2.13 [0–3] | 43.95 [0–100] | 12.32 [0–100] | |
| population | 95.49 [77–100] | 80.89 [5–92] | 80.54 [24–100] | 96.28 [78–100] | 6.56 [0–30] | 1.41 [0–2] | 52.19 [0–100] | 12.55 [0–100] | |
|
Rainy season |
18+ | 99.19 [92–100] | 79.13 [53–92] | 75.61 [11–100] | 94.91 [62–100] | 10.08 [0–23] | 2.17 [0–5] | 42.90 [0–90] | 9.81 [0–44] |
| 6 to 17 | 99.79 [94–100] | 81.83 [51–92] | 83.28 [45–100] | 96.96 [91–100] | 10.24 [0–25] | 2.22 [0–8] | 48.59 [0–91] | 10.42 [0–50] | |
| 0 to 5 | 100.00 | 87.00 [72–92] | 89.21 [69–100] | 98.60 [96–100] | 11.33 [0–19] | 2.31 [0–11] | 33.88 [0–85] | 10.55 [0–50] | |
| population | 99.67 [97–100] | 82.82 [58–92] | 81.93 [27–100] | 96.90 [82–100] | 10.47 [0–23] | 2.23 [0–9] | 42.40 [0–89] | 10.27 [0–48] | |
Min and max reported in brackets give the value recorded in the village with the lower and the higher average value, respectively
aTrue average LLIN personal protection efficacy: estimated proportion of Anopheles bites prevented by the use of a LLIN