Table 3.
HSG's sensitivity specificity calculation
| Statistic | Value | 95% CI |
| Sensitivity | 81.33% | 70.67% to 89.40% |
| Specificity | 64.66% | 55.91% to 72.75% |
| Positive Likelihood Ratio | 2.30 | 1.78 to 2.97 |
| Negative Likelihood Ratio | 0.29 | 0.18 to 0.47 |
| Disease prevalence (*) | 36.06% | 29.53% to 42.99% |
| Positive Predictive Value (*) | 56.48% | 50.16% to 62.60% |
| Negative Predictive Value (*) | 86.00% | 79.03% to 90.92% |
| Accuracy (*) | 70.67% | 63.98% to 76.77% |
These values are dependent on disease prevalence