Table 5.
Physical condition of LLINs by collection time point, Waspam, Nicaragua (n = 163 nets)
| Characteristics | Collection time point | |||
|---|---|---|---|---|
| 6 months | 12 months | 24 months | 36 months | |
| LLIN pHI category, n (%) | ||||
| Good | 48 (87.3) | 28 (70.0) | 8 (23.5) | 7 (20.6) |
| Damaged | 7 (12.7) | 9 (22.5) | 16 (47.1) | 14 (41.2) |
| Too torn | 0 (0.0) | 3 (7.5) | 10 (29.4) | 13 (38.2) |
| Nets with at least one hole, n (%) | 43 (78.2) | 39 (97.5) | 34 (100.0) | 33 (97.1) |
| Number of holes, median (range) | 2.0 (0–26) | 6.5 (0–96) | 21.0 (1–74) | 25.5 (0–160) |
| pHI, median (range) | 7.0 (0–588) | 37.5 (0–1,272) | 221.0 (1–1,678) | 480.5 (0–5,113) |
| Nets with at least one seam failure, n (%) | 10 (18.2) | 9 (22.5) | 19 (55.9) | 11 (32.4) |
| Repairs, n (%) | 0 (0.0) | 1 (2.5) | 1 (2.9) | 0 (0.0) |
| Total number of nets, n | 55 | 40 | 34 | 34 |
| Hole size, n (%) | ||||
| Size 1 | 207 (82.8) | 492 (80.0) | 671 (77.4) | 749 (69.1) |
| Size 2 | 37 (14.8) | 104 (16.9) | 138 (15.9) | 232 (21.4) |
| Size 3 | 6 (2.4) | 19 (3.1) | 58 (6.7) | 103 (9.5) |
| Total number of holes, n (%) | 250 (100.0) | 615 (100.0) | 867 (100.0) | 1,084 (100.0) |
pHI category: good (≤ 64), damaged (65–642), too torn (≥ 643)
Hole size categories: size 1 (0.5–2 cm), size 2 (2–10 cm), size 3 (10–25 cm), size 4 (> 25 cm); no size 4 holes observed