. 2020 Sep 18;17(9):e1003248. doi: 10.1371/journal.pmed.1003248

Table 4. Percentage attrition (defined as net loss due to discarding or alternative use of nets) and hazard ratios after 36 months by net product and time point.

Net product	Percent attrition (95% CI)			Hazard ratio (95% CI), p-value
Net product	10 months	22 months	36 months	Hazard ratio (95% CI), p-value
Olyset	7 (5, 8)	25 (21, 29)	55 (49, 61)	1
PermaNet	5 (3, 6)	20 (17, 24)	42 (38, 46)	0.71 (0.64, 0.79), p < 0.001
NetProtect	6 (4, 8)	22 (18, 26)	46 (43, 50)	0.81 (0.71, 0.93), p = 0.008
				p < 0.001^*

Details of the analysis are provided in S5 Table. Number of nets remaining in households by time point: 10 months, 8,269 nets; 22 months, 6,324 nets; 36 months, 3,942 nets.

*p-Value for the comparison between the 3 nets. For the difference between PermaNet and NetProtect, p = 0.006.