Table 7 Accuracy of colposcopic Lugol’s staining mustard yellow in predicting normal or benign, low-grade lesion, high-grade lesion and carcinoma
From: Clinical application of the 2011 IFCPC colposcope terminology
Sensitivity (95% CI) | Specificity (95% CI) | Positive predictive value (95% CI) | Negative predictive value (95% CI) | Youden index | |
|---|---|---|---|---|---|
Normal or benign | 11.0% (8.7–13.8%) | 65.7% (63.1–68.3%) | 13.0% (10.3–16.2%) | 61.4% (58.8–64.0%) | 0.061 |
LSIL | 22.3% (19.3–25.7%) | 70.7% (68.1–73.2%) | 29.0% (25.1–33.1%) | 63.0% (60.4–65.6%) | − 0.070 |
HSIL | 49.1% (44.9–53.4%) | 81.9% (79.7–83.9%) | 51.6% (47.2–56.0%) | 80.4% (78.2–82.4%) | 0.310 |
Carcinoma | 33.3% (24.7–43.3%) | 73.5% (71.4–75.5%) | 6.5% (4.6–9.0%) | 95.2% (93.5–96.5%) | 0.068 |