Table 2.
Odds ratio of true positive and true negative rates of the experimental group compared to the control group with 95% confidence intervals
| Statistic | True positive rate (sensitivity) detection of enamel-only proximal caries | True negative rate (specificity) identification of healthy surfaces | ||||
|---|---|---|---|---|---|---|
| Detected | Undetected | Total | Detected | Undetected | Total | |
| Experimental | 591 | 189 | 780 | 2,470 | 422 | 2,892 |
| Control | 317 | 398 | 715 | 2,553 | 98 | 2,651 |
| Correctly identified in experimental | 75.8% | 85.4% | ||||
| Correctly identified in control | 44.3% | 96.3% | ||||
| Relative risk (95% confidence interval) | 1.71 (1.56, 1.87) | 0.89 (0.87, 0.90) | ||||