Table 1. Diagnostic performance of H. pylori stool antigen test in southwestern Uganda
From: Diagnostic performance of fecal Helicobacter pylori antigen test in Uganda
16s rRNA | Fecal antigen | n (%) | sensitivity | specificity | PPV | NPV | LR- | LR+ | NND | |
|---|---|---|---|---|---|---|---|---|---|---|
Men, n=72 | Positive | Positive | 26 (36.11) | 0.81 (0.62, 1.00) | 0.97 (0.91, 1.04) | 0.96 (0.86, 1.06) | 0.87 (0.73, 1.01) | 0.19 (-0.01, 0.39) | 32 (-57, 122) | 1.21 (0.95, 1.46) |
Negative | 6 (8.33) | |||||||||
Negative | Positive | 1 (1.39) | ||||||||
Negative | 39 (54.17) | |||||||||
Women, n=78 | Positive | Positive | 31 (39.74) | 0.89 (0.74,1.03) | 0.98 (0.91, 1.04) | 0.97 (0.88,1.05) | 0.91 (0.80,1.03) | 0.12 (-0.04, 0.27) | 38 (-67,143) | 1.13 (0.95, 1.32) |
Negative | 4 (5.13) | |||||||||
Negative | Positive | 1 (1.28) | ||||||||
Negative | 42 (53.85) | |||||||||
All, n=150 | Positive | Positive | 57 (38) | 0.85 (0.76, 0.94) | 0.96 (0.94, 1.01) | 0.97 (0.92, 1.01) | 0.89 (0.83, 0.95) | 0.15 (0.06, 0.24) | 35 (-13, 84) | 1.17 (1.06, 1.28) |
Negative | 10 (6.7) | |||||||||
Negative | Positive | 2 (1.3) | ||||||||
Negative | 81 (54) |