Skip to main content

Table 1 Characteristics of long-lasting insecticidal nets by age category of net

From: Long-lasting insecticidal nets in Zambia: a cross-sectional analysis of net integrity and insecticide content

Characteristic LLINs aged 25–30 months (n = 349) LLINs aged 31–36 months (n = 193) LLINs aged 37–42 months (n = 122) LLINs aged 43–48 months (n = 49)
Any holes (%) 333 (95.4) 184 (95.3) 106 (86.9) 47 (95.9)
Median total number of holes (IQR range) 20 (8–39) 16 (7–32) 7 (2–21) 18 (8–32)
Median total hole area (IQR range)a 180.1 (28.4-645.9)b 106.5 (23.2-430.4) 30.2 (3.4-162.9)c 53.7 (11.5-221.4)b
Any seam failure (%) 101/348 (29.0) 42 (21.8) 20 (16.4) 15 (30.1)
Any burns (%) 188 (53.9) 108 (56.0) 51 (41.8) 20 (40.8)
Used last night (%) 283 (81.1) 159 (82.4) 64 (52.5) 18 (36.7)
Any repair (%) 37 (10.6) 16 (8.3) 7/120 (5.8) 2/49 (4.1)
Used above a reed mattress (%) 54/149 (36.2) 60/106 (56.6) 11/59 (18.6) 2/30 (6.7)
Ever washed 288/288 (100) 159/159 (100) 79/79 (100) 22/22 (100)
Median number of washes (IQR range) 4 (2–6) 3 (2–6) 3 (2–5) 4 (3−5)
  1. aSignificant differences among net age groups, Kruskal-Wallis Chi-square 43.4011, p <0.0001
  2. b Median total hole areas of oldest and youngest LLINs were not significantly different
  3. cSignificantly different from LLINs in the 24–30 months and 31–36 months net age groups by Dunn post-hoc testing