Table 2.
Attrition and integrity of campaign nets up to three years after distribution
| Location | Attrition (adjusted) | Integrity (physical condition) | ||
|---|---|---|---|---|
| Year | All* | Due to “wear and tear”** | Good (95% CI) | Serviceable (95% CI) |
| Zamfara | ||||
| Year 1 | 6.0% | 0.3% | 94.7% (92.3, 96.4) | 98.5% (96.9, 99.2) |
| Year 2 | 25.6% | 6.5% | 76.3% (69.4, 82.0) | 93.9% (90.6, 96.0) |
| Year 3 | 33.6% | 13.4% | 60.5% (53.8, 66.7) | 89.9% (86.4, 92.5) |
| Nasarawa | ||||
| Year 1 | 22.2% | 7.5% | 80.9% (75.5, 85.2) | 92.3% (89.3, 94.5) |
| Year 2 | 19.0% | 9.6% | 51.6% (44.6, 58.5) | 72.6% (66.8, 77.8) |
| Year 3 | 32.3% | 18.0% | 31.7% (25.5, 38.6) | 53.1% (46.9, 59.3) |
| Cross River | ||||
| Year 1 | 13.5% | 4.7% | 93.7% (89.3, 96.4) | 97.7% (95.5, 98.9) |
| Year 2 | 31.2% | 12.5% | 83.8% (76.3, 89.2) | 93.1% (88.1, 96.1) |
| Year 3 | 28.9% | 18.6% | 74.5% (67.8, 80.2) | 88.4% (83.8, 91.9) |
*All nets lost since distribution irrespective of reason for loss, i.e. including nets given away for other so use.
**Nets received and discarded (destroyed, thrown away) or used for other purposes than sleeping under.
Attrition is reported as all cause and only due to discarding and re-purposing of nets; Integrity is based on the proportionate hole index (pHI) values (see Methods section for details).