ROC curve analysis
| Criteriona | Sensitivity | 95% CI | Specificity | 95% CI | +LR | −LR |
|---|---|---|---|---|---|---|
| ≥ 0 | 100.00 | 90.9–100.0 | 0.00 | 0.0–3.6 | 1.00 | |
| >0 | 46.15 | 30.1–62.8 | 81.37 | 72.4–88.4 | 2.48 | 0.66 |
| >1 | 46.15 | 30.1–62.8 | 82.35 | 73.5–89.2 | 2.62 | 0.65 |
| >2 | 33.33 | 19.1–50.2 | 84.31 | 75.8–90.8 | 2.12 | 0.79 |
| >4 | 33.33 | 19.1–50.2 | 89.22 | 81.5–94.5 | 3.09 | 0.75 |
| >5 | 25.64 | 13.1–42.1 | 90.20 | 82.7–95.2 | 2.62 | 0.82 |
| >6 | 23.08 | 11.2–39.3 | 93.14 | 86.4–97.2 | 3.36 | 0.83 |
| >7 | 20.51 | 9.3–36.5 | 93.14 | 86.4–97.2 | 2.99 | 0.85 |
| >8 | 17.95 | 7.6–33.5 | 98.04 | 93.1–99.7 | 9.15 | 0.84 |
| >9 | 15.38 | 5.9–30.5 | 98.04 | 93.1–99.7 | 7.85 | 0.86 |
| >11 | 15.38 | 5.9–30.5 | 99.02 | 94.6–99.8 | 15.69 | 0.85 |
| >15 | 12.82 | 4.3–27.4 | 100.00 | 96.4–100.0 | 0.87 | |
| >20 | 0.00 | 0.0–9.1 | 100.00 | 96.4–100.0 | 1.00 |
Note:—Cl indicates confidence interval; LR, likelihood ratio.
↵a Number of cerebral microbleeds.