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Table 4 Type of damage: percentage of assessment households responding to LLIN survey question “What was the principle cause of the damage to this LLIN?” at 12 and 18 months assessment visits

From: Durability assessment results suggest a serviceable life of two, rather than three, years for the current long-lasting insecticidal (mosquito) net (LLIN) intervention in Benin

  Kessounou South Malanville North Allada South Kandi North
Distance to water for washing nets < 0.05 km > 5.0 km
Assessment visit T12 T18 T12 T18 T12 T18 T12 T18
n of nets found with any hole (s) 219 210 294 260 178 133 241 208
n (%) of nets with ‘rip in the fabric’ 158 (72) 142 (68) 279 (95) 248 (95) 133 (75) 114 (86) 219 (91) 178 (86)
CI 95% 65.87-77.66 61.02-73.58 91.75-96.88 92.11-97.34 67.86-80.54 78.76-90.66 86.57-93.89 80.16-89.71
n (%) of nets with ‘rip in the seam’ 4 (2) 5 (2) 3 (1) 5 (2) 10 (6) 3 (2) 9 (4) 16 (8)
CI 95% 00.71-04.60 01.02-05.45 00.35-02.96 00.82-04.42 03.08-10.03 00.77-06.42 01.98-06.94 04.79-12.13
n (%) of nets with ‘burn holes’ 52 (24) 62 (29) 9 (3) 6 (2) 26 (14) 11 (8) 12 (5) 9 (4)
CI 95% 18.59-29.80 23.77-36.02 01.62-05.71 01.06-04.94 10.17-20.54 04.68-14.20 02.87-08.50 02.29-08.02
n (%) of nets chewing by rodent 5 (2) 2 (1) 3 (1) 1 (1) 9 (5) 5 (4) 1 (0) 5 (2)
CI 95% 00.98-05.23 00.26-03.41 00.35-02.96 00.07-02.15 02.68-09.33 01.62-08.50 00.07-02.31 01.03-05.50
  1. CI=Confidence Interval.