Table 3.
Multivariable models of factors associated with undergoing an opportunistic salpingectomy among women at high risk of ovarian cancer by location and region of residence*
| Location/Region of Residence | Sterilization Encounters (n=15,188) | Benign Hysterectomy Encounters (n=14,196)† | ||||||
|---|---|---|---|---|---|---|---|---|
| Total no. | No. OS | RR (95% CI) | P heterogeneity | Total no. | No. OS | RR (95% CI) | P heterogeneity | |
| Urban Northeast | 2,170 | 192 | Reference | 2,496 | 406 | Reference | ||
| Urban Midwest | 2,701 | 152 | 0.67 (0.55-0.81) | <0.001 | 2,160 | 235 | 0.88 (0.77-1.00) | <0.001 |
| Urban South | 5,674 | 424 | 0.79 (0.68-0.92) | 5,533 | 637 | 0.79 (0.71-0.88) | ||
| Urban West | 2,327 | 200 | 1.00 (0.84-1.20) | 2,281 | 292 | 1.04 (0.92-1.19) | ||
| Rural Northeast | 296 | 15 | 0.72 (0.43-1.19) | 217 | 23 | 0.84 (0.57-1.22) | ||
| Rural Midwest | 584 | 36 | 0.69 (0.50-0.96) | 408 | 28 | 0.59 (0.42-0.82) | ||
| Rural South | 1,216 | 74 | 0.66 (0.52-0.84) | 908 | 78 | 0.65 (0.52-0.80) | ||
| Rural West | 220 | 15 | 0.78 (0.48-1.27) | 193 | 23 | 0.90 (0.61-1.32) | ||
*
Limited to women with a family history of and genetic susceptibility to breast/ovarian cancer.
†
Limited to abdominal hysterectomies with or without laparoscopy. Abbreviations: RR, risk ratio; CI, confidence interval. Models adjusted for year of surgery, age, type of insurance, place of service, and number of comorbidities.