Test | BS microscopy | |
---|---|---|
Positive (n) | Negative (n) | |
CareStart™ | ||
Positive | 509 | 58 |
Negative | 1 | 412 |
Measures of diagnostic performance | Value | |
---|---|---|
Sensitivity (95% CI) (%) | 99.8 (98.9 to 99.9) | |
Specificity (95% CI) (%) | 87.6 (84.4 to 90.3) | |
Positive predictive value (95% CI) (%) | 89.8 (87 to 92) | |
Negative predictive value 95% CI) (%) | 99.8 (98.6 to 99.9) | |
Diagnostic accuracy (95% CI) | 0.5 (− 0.193 to 1.193) | |
Likelihood ratio of a positive test | 8.0 | |
Likelihood ratio of a negative test | 0.002 | |
Cohen’s kappa, p value | 0.863, < 0001 |