Sensitivity (95% CI) | Specificity (95% CI) | LR+ | LR− | Accuracy | |
---|---|---|---|---|---|
Serodia-RA ⩾40 | 0.77 (0.67 to 0.85) | 0.88 (0.80 to 0.94) | 6.4 | 0.3 | 0.82 |
Serodia-RA ⩾80 | 0.66 (0.55 to 0.75) | 0.93 (0.86 to 0.97) | 9.4 | 0.4 | 0.79 |
Nephelometry ⩾20 IU/ml | 0.63 (0.52 to 0.73) | 0.91 (0.84 to 0.96) | 7.0 | 0.4 | 0.77 |
Nephelometry ⩾30 IU/ml | 0.58 (0.47 to 0.68) | 0.93 (0.86 to 0.97) | 8.3 | 0.5 | 0.75 |
Serodia-RA ⩾40 and nephelometry ⩾20 IU/ml | 0.63 (0.52 to 0.73) | 0.94 (0.88 to 0.98) | 10.5 | 0.4 | 0.79 |
Serodia-RA ⩾40 or nephelometry ⩾20 IU/ml | 0.77 (0.67 to 0.85) | 0.85 (0.77 to 0.92) | 5.1 | 0.3 | 0.81 |