Table 3.
Diagnosis of type 2 endometrial cancers by preoperative endometrial sample (n = 91)
| Cornier® Pipelle (n = 47) | Curettage with hysteroscopy (n = 44) | Both types of sampling (n = 91) | |
|---|---|---|---|
| Sensitivity (%) [95 % CI] | 60.0 [23.1–88.2] | 66.7 [30.0–90.3] | 63.6 [35.4–84.8] |
| Specificity (%) [95 % CI] | 97.6 [87.7–99.6] | 92.1 [79.2–97.3] | 95.0 [87.8–98.0] |
| PPV (%) [95 % CI] | 75.0 [30.1–95.4] | 57.1 [25.0–84.2] | 63.6 [35.4–84.8] |
| NPV (%) [95 % CI] | 95.3 [84.5–98.7] | 94.6 [82.3–98.5] | 95.0 [87.8–98.0] |
| +LR [95 % CI] | 25.2 [3.2–198.6] | 8.4 [2.5–28.7] | 12.7 [4.4–36.5] |
| -LR [95 % CI] | 0.4 [0.14–1.2] | 0.4 [0.1–1.1] | 0.4 [0.1–0.8] |
| Overestimation (%) | 2.1 * | 11.4* | 6.6 |
| Accuracy rate (%) | 93.6* | 84.1* | 89.0 |
| Underestimation (%) | 4.3* | 4.5* | 4.4 |
PPV positive predictive value, NPV negative predictive value, +LR positive likelihood ratio, −LR negative likelihood ratio
*There was no significant difference between the pipelle group and the curettage group (p = 0.259)