Skip to main content
. 2011 Jul 6;2011(7):CD008122. doi: 10.1002/14651858.CD008122.pub2

6. Comparison of antibody and RDT types verified with microscopy.

  Number of studies Number of patients Number of P. falciparum cases Pooled sensitivity (95% CI) Pooled specificity (95% CI) Test 1
Antibody‐based test: indirect comparison (using all studies)
HRP‐2 based 75 43,307 12,857 95.0 (93.5, 96.2) 95.2 (93.4, 96.6)  
pLDH based 19 14,787 4674 93.2 (88.0, 96.2) 98.5 (96.7, 99.4)  
Ratio       0.98 (0.94, 1.02), P = 0.34 1.03 (1.02, 1.05), P < 0.001 P = 0.01
Antibody‐based test: direct comparison (using only studies that directly compared the two)
HRP‐2 based 9 10,626 3672 95.6 (90.0, 98.1) 95.8 (84.7, 98.9)  
pLDH based 9 10,623 3672 94.8 (84.1, 98.2) 98.1 (87.8, 99.7)  
Ratio       0.99 (0.94, 1.04) P = 0.60 1.02 (0.98, 1.07), P = 0.22 P = 0.35
Test type: indirect comparison (using all studies of Type 1 and 4)
Type 1 65 40,062 11,966 94.8 (93.0, 96.1) 95.2 (93.2, 96.7)  
Type 4 16 1,3010 4274 91.5 (84.7, 95.3) 98.7 (96.9, 99.5)
Ratio       0.96 (0.91, 1.02), P = 0.20 1.04 (1.02, 1.06), P < 0.001 P = 0.009
Test type: direct comparison (using only comparative studies of Type 1 and 4)
Type 1 7 9764 3433 94.5 (88.6, 97.4) 95.7 (72.2, 99.5)  
Type 4 7 9761 3433 92.0 (85.7, 94.8) 98.6 (80.0, 99.9)
Ratio       0.97 (0.87, 1.09), P = 0.51 1.03 (0.95, 1.11), P = 0.31 P = 0.26

1Likelihood ratio test for evidence of a difference between test accuracy estimates between antigen and RDT types.