Table 2 Sensitivity and specificity of IgM ELISA for dilution 1:80 and 1:160 at different cut-off values
Dilution | Cut-off value | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) |
|---|---|---|---|---|---|
0.45 | 96.15 | 57.89 | 75.76 | 91.67 | |
1:80 | 0.50 | 94.87 | 75.44 | 84.09 | 91.49 |
0.55 | 90.38 | 87.72 | 86.96 | 90.97 | |
0.60 | 85.26 | 93.86 | 95.00 | 82.31 | |
0.65 | 80.13 | 97.37 | 97.66 | 78.17 | |
0.45 | 88.46 | 84.21 | 88.46 | 84.21 | |
1:160 | 0.50 | 83.33 | 90.35 | 92.20 | 79.84 |
0.55 | 72.44 | 92.98 | 93.39 | 71.14 | |
0.60 | 66.67 | 97.37 | 97.20 | 68.10 | |
0.65 | 57.05 | 97.37 | 96.74 | 62.36 |