Table 3.

Measures of agreement between registry and radiologist with 95% confidence intervals (CIs), using low ligation as reference

Measure	Point estimate	95% CI
Percent agreement	81.9%	74.0–89.8%
Sensitivity	86.2%	75.3–93.5%
Specificity	72.4%	52.8–87.3%
Positive predictive value	87.5%	50.6–85.3%
Negative predictive value	70.0%	76.8–94.4%
Cohen’s Kappa	0.58	0.40–0.76
Prevalence-adjusted Kappa	0.64	0.48–0.80