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Table 3 Net-use environment and washing of cohort nets from campaign

From: Monitoring the physical and insecticidal durability of the long-lasting insecticidal net DawaPlus® 2.0 in three States in Nigeria

Variable

Zamfara

Ebonyi

Oyoa

p-value for site comparison

N = 357

% (95% CI)

N = 367

% (95% CI)

N = 372

% (95% CI)

Cohort nets

 Ever found hanging

99.4 (96.1–99.9)

85.3 (79.6–89.5)

55.1 (48.3–61.7)

< 0.0001

 Ever used

98.9 (95.9–99.7)

80.4 (73.6–85.7)

60.5 (52.4–68.0)

< 0.0001

 

N = 355

N = 313

N = 205

 

Cohort nets ever hung

 Tied up or folded when hanging

  Never

0.8 (0.2–3.5)

14.4 (8.6–23.1)

31.2 (19.3–46.3)

< 0.0001

  At times

59.7 (43.2–74.3)

39.9 (30.1–50.6)

16.6 (10.7–24.9)

  Always

39.4 (24.8–56.3)

45.7 (33.4–58.5)

52.2 (34.9–69.0)

 Type of sleeping placeb

  Bed frame (finished)

20.7 (12.8–31.8)

9.3 (3.7–21.3)

6.3 (3.1–12.6)

< 0.0001

  Bed frame (sticks)

72.2 (59.8–81.9)

54.5 (46.2–62.5)

10.2 (6.7–15.3)

  Foam mattress

3.1 (1.6–6.0)

35.6 (27.4–44.6)

62.9 (51.3–73.3)

  Reed mat

4.0 (2.1–7.5)

0.6 (0.2–2.3)

20.5 (11.2–34.5)

 

N = 353

N = 295

N = 225

 

Cohort nets ever used

 Dominant user group

  Children only

2.6 (1.1–6.2)

8.1 (5.8–11.3)

9.4 (4.2–19.5)

< 0.0001

  Children with adults

73.9 (65.3–80.9)

63.7 (59.8–67.4)

37.1 (28.4–46.7)

  Adults only

23.5 (16.9–31.8)

28.2 (23.7–33.0)

53.6 (43.8–63.0)

  Ever washed

98.0 (95.2–99.2)

53.9 (32.9–73.6)

70.2 (55.8–81.5)

< 0.0001

 

N = 347

N = 162

N = 177

 

Cohort nets ever washed

 Washes last 6 monthsc

  Median (IQR)

3.3 (2.5–4.3)

2.0 (2.0–2.3)

2.0 (1.5–3.0)

< 0.0001

 Use of detergent

  Never

28.0 (17.7–41.1)

98.8 (91.7–99.8)

51.4 (38.2–64.4)

< 0.0001

  At times

60.8 (52.6–68.5)

1.2 (0.2–8.3)

17.5 (11.8–25.2)

  Always

11.2 (6.5–18.8)

0.0 (–)

31.1 (20.0–44.8)

 Drying net outside

  Never

0.6 (0.1–2.2)

67.3 (48.8–81.6)

3.4 (1.2–9.1)

< 0.0001

  At times

8.1 (2.5–23.5)

13.0 (5.0–29.6)

8.5 (4.4–15.8)

  Always

91.3 (74.8–97.4)

19.7 (8.1–40.7)

88.1 (77.2–94.2)

 Drying over bush or fence

  Never

30.0 (19.8–42.7)

99.4 (95.7–99.9)

66.7 (48.0–81.3)

< 0.0001

  At times

60.2 (51.5–68.4)

0.6 (0.1–4.3)

13.6 (7.0–24.6)

  Always

9.8 (5.1–34.3)

0.0 (–)

19.8 (10.4–34.3)

  1. aOnly 24 months of follow-up
  2. bLowest type of sleeping place ever reported for net
  3. cAverage of all recorded 6 months episodes for each net
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