TABLE 2.
Association between use of hysteroscopy and likelihood of preoperative diagnosis of leiomyosarcoma, after adjusting for other patient and tumor characteristics
| Patient and Tumor Characteristics | Adjusted Risk Ratio | 95% Confidence Interval |
|---|---|---|
| Type of endometrial sampling | ||
| With hysteroscopy | 3.03 | (1.43, 6.42) |
| Without hysteroscopy | Reference | |
| Age | ||
| 18–54 years | Reference | |
| ≥55 years | 1.00 | (0.64, 1.54) |
| Race/Ethnicity | ||
| Non-Hispanic White | 1.00 | (0.66, 1.50) |
| Other/Unknown | Reference | |
| Cancer stage | ||
| Localized | 0.50 | (0.28, 0.89) |
| Regional | 0.60 | (0.35, 1.05) |
| Distant | Reference | |
| Cancer grade | ||
| 1–3 | Reference | |
| 4 | 1.35 | (0.90, 2.03) |
| Unknown | 1.06 | (0.61, 1.84) |
| Tumor size | ||
| <8 cm | Reference | |
| 8–11 cm | 0.82 | (0.49, 1.38) |
| >11 cm | 0.54 | (0.30, 0.99) |
| Unknown | 1.36 | (0.82, 2.24) |
| Presence of a diagnosis code for leiomyoma | ||
| Yes | 0.92 | (0.62, 1.36) |
| No | Reference | |
| Postmenopausal bleeding | ||
| Yes | 1.13 | (0.70, 1.81) |
| No | Reference | |
| Premenopausal menorrhagia/frequent Menstruation | ||
| Yes | 0.78 | (0.42, 1.47) |
| No | Reference |