Table 3 Net use environment and washing of cohort LLIN from campaign across all survey rounds

Cohort LLIN

N = 737

N = 619

N = 675

Ever hung

65.7 (61.4–69.7)

75.0 (65.3–82.7)

70.2 (63.2–76.4)

0.18

Ever used

62.8 (58.5–67.0)

70.6 (63.0–77.2)

69.6 (62.7–75.8)

0.15

Cohort LLIN ever hung

N = 484

N = 464

N = 474

Tied up or folded when hanging

<0.0001

 Never

88.0 (83.3–91.6)

43.1 (35.0–51.6)

74.1 (61.9–83.4)

 At times

8.1 (5.3–12.0)

19.8 (14.7–26.3)

19.2 (12.3–28.7)

 Always

3.9 (2.2–7.0)

37.1 (30.8–43.8)

6.8 (3.0–14.8)

Type of sleeping place**

<0.0001

 Bed frame (finished)

40.2 (32.8–48.1)

0.9 (0.4–2.2)

42.8 (30.9–55.6)

 Bed frame (sticks)

26.1 (20.2–32.9)

1.6 (0.5–4.8)

23.7 (17.2–31.7)

 Foam mattress

4.1 (2.3–7.0)

4.3 (0.8–19.9)

2.0 (0.7–5.6)

 Reed mat

29.7 (23.8–36.4)

93.3 (81.2–97.8)

31.6 (20.6–45.1)

Cohort LLIN ever used

N = 445

N = 430

N = 461

Net was used only by:

< 0.0001

 Children

17.5 (14.1–21.5)

18.1 (13.5–23.9)

15.4 (11.7–20.1)

 Children with adults

15.5 (11.4–20.8)

52.1 (43.4–60.7)

20.4 (16.3–25.2)

 Adults

67.0 (59.7–73.5)

29.8 (24.8–35.3)

64.2 (58.2–69.8)

 Ever washed

87.3 (84.1–89.9)

76.2 (58.9–87.7)

68.1 (58.1–76.6)

0.03

Cohort LLIN ever washed

N = 437

N = 373

N = 322

 Washes last 6 months

1.5 (1–2)

2.6 (2–4)

2 (1.5–3.5)

< 0.0001

 Median (IQR)

Use of detergent

< 0.0001

 Never

77.6 (68.9–84.4)

36.5 (26.9–47.3)

74.5 (63.2–83.3)

 At times

15.6 (10.9–21.7)

24.9 (16.9–35.2)

16.2 (10.1–24.8)

 Always

6.9 (4.3–10.8)

38.6 (28.7–49.6)

9.3 (4.4,18.5)

Drying net outside

0.31

 Never

3.2 (1.3–7.5)

2.1 (1.0–4.7)

0.9 (0.3–2.6)

 At times

7.6 (3.0–17.7)

6.2 (3.3–11.1)

3.1 (1.2–7.6)

 Always

89.2 (76.8–95.4)

91.7 (86.6–95.0)

96.0 (91.9–98.0)

Drying over bush or fence

< 0.0001

 Never

62.5 (50.0,73.5)

33.5 (23.0–45.9)

58.4 (42.5–72.7)

 At times

19.5 (12.8–28.5)

24.7 (18.3–32.4)

18.0 (11.5–27.1)

 Always

18.1 (12.6–25.2)

41.8 (30.9–53.6)

23.6 (13.1–38.8)