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Table 6 Diagnostic accuracy of RDT for malaria infection by parasite density and age group (rainy season)

From: Accuracy of a rapid diagnostic test on the diagnosis of malaria infection and of malaria - attributable fever during low and high transmission season in Burkina Faso

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