Table 2. Multivariable models to predict risk of adverse outcomes by type of initial surgery.
30-day rehospitalization | Wound complication diagnosis within 2 years | Infection diagnosis within 2 years | ||||
---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | OR | 95% CI | |
Type of surgery | ||||||
Mastectomy and no reconstruction | 1 | . | 1 | . | 1 | . |
Mastectomy + implant | 1.116 | 0.86-1.45 | 2.10 | 1.67-2.66 | 1.84 | 1.64-2.07 |
Mastectomy + autologous | 1.75 | 1.39-2.21 | 5.17 | 4.24-6.30 | 1.94 | 1.73-2.18 |
Radiation | ||||||
No | 1 | . | 1 | . | 1 | . |
Yes | 1.038 | 0.83-1.30 | 1.154 | 0.94-1.42 | 1.29 | 1.15-1.44 |
Chemotherapy | ||||||
No | 1 | . | 1 | . | 1 | . |
Yes | 1.186 | 0.96-1.47 | 1.16 | 0.96-1.40 | 1.082 | 0.98-1.20 |
Age | ||||||
< 40 | 1 | . | 1 | . | 1 | . |
40-49 | 0.949 | 0.65-1.38 | 1.07 | 0.76-1.51 | 1.063 | 0.89-1.27 |
50-59 | 1.016 | 0.71-1.46 | 1.34 | 0.97-1.86 | 1.158 | 0.97-1.38 |
60 and older | 1.21 | 0.79-1.85 | 1.97 | 1.35-2.87 | 1.20 | 0.97-1.47 |
Year of mastectomy | ||||||
1998 | 1 | . | 1 | . | ||
1999 | 0.722 | 0.33-1.59 | 1.00 | 0.68-1.49 | ||
2000 | 1.196 | 0.58-2.45 | 1.088 | 0.74-1.60 | ||
2001 | 0.884 | 0.44-1.79 | 1.145 | 0.80-1.64 | ||
2002 | 1.078 | 0.56-2.08 | 1.117 | 0.79-1.58 | ||
2003 | 1.097 | 0.58-2.09 | 1.045 | 0.75-1.47 | ||
2004 | 1.111 | 0.59-2.09 | 1.394 | 1.00-1.94 | ||
2005 | 1.691 | 0.91-3.14 | 1.365 | 0.98-1.90 | ||
2006 | 1.785 | 0.97-3.28 | 1.29 | 0.93-1.79 | ||
2007 | 1.639 | 0.89-3.00 | 1.449 | 1.05-2.00 | ||
Bilateral mastectomy | ||||||
No | 1 | . | ||||
Yes | 1.20 | 1.05-1.37 | ||||
Region of country | ||||||
Northeast | ||||||
North Central | ||||||
South | ||||||
West | ||||||
HMO or PPO with capitation | ||||||
No | ||||||
Yes | ||||||
| ||||||
Goodness of fit (P-value) | 0.84 | 0.61 | 0.43 | |||
| ||||||
Interaction of radiation by type of surgery (P-value) | 0.70 | 0.59 | 0.14 |