Table 3.
Cox Proportional Hazards Regression Analysis for Time to Repeat Stress Urinary Incontinence Surgery
| Variable | Adjusted Hazard Ratio (95% Confidence Interval) for Repeat Surgery |
|---|---|
| Age category (y) | |
| 18–34 (reference) | — |
| 35–44 | 0.95 (0.86–1.04) |
| 45–54 | 1.02 (0.93–1.12) |
| 55–64 | 1.14 (1.04–1.25) |
| Calendar year | |
| 2000 (reference) | — |
| 2001 | 0.71 (0.62–0.81) |
| 2002 | 0.42 (0.37–0.48) |
| 2003 | 0.43 (0.38–0.49) |
| 2004 | 0.42 (0.37–0.47) |
| 2005 | 0.50 (0.45–0.57) |
| 2006 | 0.43 (0.38–0.48) |
| 2007 | 0.41 (0.37–0.47) |
| 2008 | 0.49 (0.44–0.55) |
| 2009 | 0.56 (0.49–0.62) |
| Region of the United States | |
| Northeast (reference) | — |
| Midwest | 1.06 (0.96–1.17) |
| South | 1.66 (1.52–1.82) |
| West | 1.24 (1.12–1.38) |
| Unknown | 1.73 (1.29–2.31) |
| SUI surgery type | |
| Burch (reference) | — |
| Sling | 1.28 (1.19–1.37) |
| Bulking agents | 8.19 (7.53–8.90) |
| Laparoscopic | 1.29 (1.12–1.48) |
| TVH and colpo-urethrocystopexy | 1.18 (0.95–1.45) |
| Needle suspension | 1.75 (1.43–2.13) |
| Kelly plication | 1.15 (0.78–1.70) |
SUI, stress urinary incontinence; TVH, total vaginal hysterectomy.