Table 6.
Comparison of geometric means (GM) of proportionate hole index (pHI) of different locations of LLINs by age and LLIN type for LLINs with complete follow-up (n = 274)
| Age in months | Part of LLIN | GM (95 % confidence intervals [CI]) | ||
|---|---|---|---|---|
| PermaNet® | Olyset® | All nets | ||
| 12 | Roof | 0.3 (0.1–0.6) | 0.3 (0.1–0.5) | 0.3 (0.1–0.5) |
| Upper half | 0.4 (0.2–0.8) | 0.5 (0.2–0.9) | 0.5 (0.3–0.7) | |
| Lower half | 0.8 (0.5–1.3) | 1.0 (0.6–1.5) | 0.9 (0.6–1.3)* | |
| Seams | 0.2 (0.02–0.3) | 0.1 (0.007–0.2) | 0.1 (0.05–0.2) | |
| 18 | Roof | 0.8 (0.4–1.2) | 2.6 (1.3–4.6) | 1.3 (0.8–1.9) |
| Upper half | 1.1 (0.6–1.7) | 2.1 (1.2–3.2) | 1.5 (1.1–2.1) | |
| Lower half | 14.3 (8.9–22.6) | 13.3 (8.4–20.8) | 13.8 (9.9–19.0)* | |
| Seams | 0.5 (0.2–1.0) | 1.1 (0.5–1.7) | 0.8 (0.5–1.2) | |
| 24 | Roof | 1.2 (0.7–1.9) | 3.1 (1.9–4.9) | 2.0 (1.4–2.8) |
| Upper half | 3.3 (2.1–5.1) | 5.0 (3.1–7.8) | 4.1 (2.9–5.6) | |
| Lower half | 34.4 (22.2–53.1) | 26.6 (16.8–41.9) | 30.3 (22.0–41.4)* | |
| Seams | 1.1 (0.6–1.8) | 1.0 (0.5–1.7) | 1.1 (0.6–1.5) | |
| 30 | Roof | 0.1 (1.4–3.3) | 4.6 (2.9–7.1) | 3.2 (2.3–4.4) |
| Upper half | 7.6 (4.7–12.0) | 7.9 (4.9–12.5) | 7.9 (5.6–10.7) | |
| Lower half | 54.0 (34.2–85.1) | 57.7 (37.1–89.4) | 55.8 (40.6–76.6)* | |
| Seams | 1.0 (0.5–1.6) | 1.5 (0.8–2.4) | 1.2 (0.8–1.7) | |
* lower half versus other parts of the LLIN, p < 0.001