DRC nets durability [public]

	A	B	C
1	DRC Net Durability Adjustment based on Adjusted AMF PDM Results
2		Input	Notes
3	DRC-specific net survival
4	Estimated percent of nets present in household, 9 month DRC PDM	73%	Reflects attrition results from AMF's PDM of net distribution in Equateur province, DRC, adjusted for risks of bias in the survey
5	Estimated additional percent of nets that are worn out, 9 month DRC PDM	3.33%	Reflects attrition results from AMF's PDM of net distribution in Equateur province, DRC, adjusted for risks of bias in the survey
6	Estimated aggregate net survival in DRC, 9 months post-distribution	70%	Calculation
7
8	Comparison to GiveWell reference net
9	Average aggregate net survival for PermaNet 2.0 (multiple countries), 9 months	0.83	Estimated as midpoint of 6 and 12 mos results because no measurements occurred at 9 mos
10	Percent difference of DRC nets from our standard net survival model at 9 months, AMF survey	-16%	Calculation
11	Percent difference of DRC nets from our standard net survival model at 12 months, PMI survey	-8%	Calculation based on field data
12	Weight on AMF PDM result	50%	Assumption
13	Weighted percent difference of DRC nets from our standard net survival model during year 1	-12%	Calculation
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15	Adjustment for survival differences more than 9 months post distribution
16	Percent difference of DRC nets from our standard net survival model, 24 mos post-distribution	-23%	Based on a different PMI survey of net survival in DRC with longer follow-up. This survey shows evidence that the survival difference between nets in DRC and nets in our standard model grows over time.
17	Percent difference of DRC nets from our standard net survival model, 36 mos post-distribution	-46%	Based on a different PMI survey of net survival in DRC with longer follow-up. This survey shows evidence that the survival difference between nets in DRC and nets in our standard model grows over time.
18	Expected reduction in survival difference for current and future distributions in DRC	30%	An assumption. We believe that net distributions in DRC may have improved over time, leading to better net survival.
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20	Adjusted difference from our standard net survival model, 24 mos post-distribution	-16%
21	Adjusted difference from our standard net survival model, 36 mos post-distribution	-32%
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23	Weight on first year survival results	45%
24	Weight on second year survival results	35%
25	Weight on third year survival results	20%
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27	Final DRC survival adjustment over a 36-month distribution	-17.4%
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