Table 2.
Diagnostic accuracy of the Kramer’ method
| TSB outcome | Kramer outcome | Total | p. value | |
|---|---|---|---|---|
| Positive | Negative | |||
| Jaundiced | 141(70.5) | 59(29.5) | 200 | 0.001 |
| Not jaundiced | 16(13.91) | 99(86.1) | 115 | |
| Measures of diagnostic performance | Value | |||
| Sensitivity (95% CI) (%) | 70.5(63.84 to 76.38) | |||
| Specificity (95% CI) (%) | 86.1(78.59 to 91.25) | |||
| Positive predictive value (95% CI) (%) | 89.8(84.09 to 93.06) | |||
| Negative predictive value 95% CI) (%) | 62.6(54.89 to 69.82) | |||
| Diagnostic accuracy (95% CI) | 0.761 | |||
| Likelihood ratio of a positive test | 5.07 | |||
| Likelihood ratio of a negative test | 0.34 | |||
| Cohen’s kappa, p value | 52.4, < 0001 | |||