Table 3 Cohen’s kappa coefficient for inter-observer agreement at offline analysis
From: Diagnostic efficacy of gel infusion sonography in post-menopausal bleeding
Endometrial category | k* (95% confidence interval) | Agreement percentage |
|---|---|---|
Abnormality (yes/no) | 0.85 (0.78–0.90) | 91 |
polyp (yes/no) | 0.71 (0.69–0.88) | 89 |
Hyperplasia (yes/no) | 0.41 (0.30–0.41) | 65 |
Cancer (yes/no) | 0.61 (0.61–0.77) | 89 |
Total all four categories | 0.59 (0.55–0.59) | 82 |
Total all four categories with clips of high quality only | 0.77 (71–84) | 88 |