TABLE 5.
Multiple variable analysis of risk factors for subsequent pelvic floor repair among Olmsted County women undergoing hysterectomy, 1965-2002
| Risk factor (n) | Number at risk at 20 ya |
Cumulative incidence at 20 y, % (95% CI) |
HR (95% CI) | P value |
|---|---|---|---|---|
| Age (per 1 y) (n = 8220) | NA | NA | 1.00 (0.99, 1.01) | .84 |
| Years since procedure (year 1965 = 0) (n = 8220) | NA | NA | 0.99 (0.97, 1.01) | .30 |
| Procedure type/indication | ||||
| Hys only/abdominal/no prolapse (n = 2942) | 990 | 2.1 (1.3, 2.8) | 1.0 (ref) | |
| Hys only/vaginal/no prolapse (n = 1905) | 486 | 1.9 (1.0, 2.8) | 0.81 (0.48, 1.35) | .41 |
| Hys plus PFR/abdominal/no prolapse (n = 43)b | 17 | 0 | 0.0 | |
| Hys plus PFR/vaginal/no prolapse (n = 119)b | 29 | 0 | 0.0 | |
| Hys only/abdominal/prolapse (n = 225) | 14 | 5.2 (1.7, 13.6) | 3.88 (1.87, 8.04) | .0003 |
| Hys only/vaginal/prolapse (n = 264) | 86 | 9.5 (5.1, 14.6) | 4.30 (2.53, 7.31) | < .0001 |
| Hys plus PFR/abdominal/prolapse (n = 195) | 95 | 6.7 (2.5, 10.8) | 2.87 (1.49, 5.52) | .002 |
| Hys plus PFR/vaginal/prolapse (n = 2527) | 1052 | 4.4 (3.4, 5.4) | 1.87 (1.3, 2.66) | .0005 |
Hys, hysterectomy; NA, not applicable.
a
n, number of women with the risk factor.
b
No events occurred in these groups.