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. 2010 Jul 7;9:192. doi: 10.1186/1475-2875-9-192

Table 6.

Diagnostic accuracy of RDT for malaria infection by parasite density and age group (rainy season)

Age Parasite density RDT Result
(years) (/μL) N positive (n) negative (n) Sensitivity (95% CI) Specificity (95% CI)
< 1 0 15 6 9 60
1-400 9 8 1 89
401-4000 18 17 1 94
4001-40000 22 22 0 100
40000+ 20 20 0 100
Total 84 fdf(87%)(87%) 73 (87%) 11 (13%)
1 - 4 0 57 22 35 61
1-400 18 15 3 83
401-4000 69 66 3 96
4001-40000 50 50 0 100
40000+ 56 56 0 100
Total 250 209 (84%) 41 (16%)
5 - 14 0 37 13 24 65
1-400 17 14 3 82
401-4000 30 28 2 93
4001-40000 20 20 0 100
40000+ 24 23 1 96
Total 128 98 (77%) 30 (23%)
15+ 0 125 10 115 92
1-400 19 11 8 58
401-4000 20 18 2 90
4001-40000 23 23 0 100
40000+ 1 1 0 100
Total 188 63 (34%) 15 (66%)

All 0 234 51 183 78
1-400 63 48 15 76
401-4000 137 129 8 94
4001-40000 115 115 0 100
40000+ 101 100 1 99
Total 650 443 (68%) 207 (32%)

All Not infected 234 51 183 78 (72 - 83)
Infected 416 392 24 94 (92- 96)

PPV during rainy season: 88% (95% CI: 85 - 91%), NPV during rainy season: 88% (95% CI: 83 - 92%).