Table 5.
Sensitivity, specificity, and positive and negative predictive values of anterior segment biometric variables to identify eyes with PACS
| Variable | Sensitivity % (95%CI) | Specificity % (95%CI) | Positive predictive value % (95%CI) | Negative predictive value % (95%CI) |
|---|---|---|---|---|
| Men (n=13) | ||||
| Central ACD | 76.9 (46.2–95.0) | 98.6 (95.9–99.7) | 76.9 (43.1–99.7) | 98.6 (95.9–99.7) |
| Peripheral ACD | 100 (73.5–100) | 73.2 (66.8–79.1) | 19.4 (12.4–29.1) | 100 (97.7–100) |
| ACA | 76.9 (46.2–94.9) | 90.1 (85.3–93.8) | 32.3 (20.8–50.1) | 98.5 (95.5–99.7) |
| ACV | 92.3 (64.0–99.8) | 81.7 (75.8–86.6) | 24.5 (17.1–34.3) | 99.4 (97.1–99.8) |
| Women (n=35) | ||||
| Central ACD | 91.4 (76.9–98.2) | 98.0 (95.3–99.3) | 86.5 (69.5–99.7) | 98.8 (96.3–99.9) |
| Peripheral ACD | 91.4 (76.9–98.2) | 92.2 (88.2–95.2) | 64.7 (49.2–76.8) | 99.1 (96.7–99.8) |
| ACA | 79.4 (62.1–91.3) | 95.9 (92.6–98.0) | 67.4 (51.2–82.8) | 97.5 (95.4–99.3) |
| ACV | 88.6 (73.3–96.8) | 89.0 (84.4–92.6) | 56.1 (41.7–72.1) | 98.2 (95.5–99.6) |
Abbreviations: PACS, primary angle-closure suspect; CI, confidence interval; ACD, anterior chamber depth; ACA, anterior chamber angle; ACV, anterior chamber volume.