Table 2 Proportion of positivity of molecular assays using DNA extracted from RDTs
Time of sample storage | |||||
|---|---|---|---|---|---|
< 1 month (N = 138) | 1–3 months (N = 57) | 3–6 months (N = 361) | > 6 months (N = 113) | Total (N = 669) | |
Assay | |||||
18 s PCR | 135 (97.8%) | 52 (91.2%) | 353 (97.8%) | 106 (93.8%) | 646 (96.6%) |
pfcrt PCR | 120 (87%) | 49 (86%) | 314 (87%) | 102 (90.3%) | 585 (87.4%) |
msp1 PCR | 112 (81.2%) | 52 (91.2%) | 322 (89.2%) | 106 (93.8%) | 592 (88.5%) |