Table 4 Proportion of LLINs in good, damaged, or too torn conditions at different ages, as defined by proportionate hole index (pHI)
From: A longitudinal study of the durability of long-lasting insecticidal nets in Zambia
Category as defined by pHI | 12 months n (%)a | 18 months n (%) | 24 months n (%) | 30 months n (%) |
|---|---|---|---|---|
All nets | n = 999 | n = 721 | n = 520 | n = 325 |
Good (0–64) | 656 (65.7) | 381 (52.8) | 200 (38.5) | 117 (36.0) |
Damaged (65–642) | 247 (24.7) | 205 (28.4) | 188 (36.2) | 112 (34.5) |
Too torn (>643) | 96 (9.6) | 135 (18.7) | 132 (25.4) | 96 (29.5) |
LLINs present at all follow-up visits, n = 274a | ||||
Good (0–64) | 209 (76.3) | 163 (59.5) | 113 (41.2) | 89 (32.5) |
Damaged (65–642) | 55 (20.1) | 79 (28.8) | 106 (38.7) | 99 (36.1) |
Too torn (>643) | 10 (3.7) | 32 (11.7) | 55 (20.1) | 86 (31.4) |