Table 4.
Stratified and multivariable analyses on receiving breast-conserving surgery without radiation therapy in Caucasian women compared to African Americans with breast cancer
| Patient and Tumor Characteristics | Odds Ratio (95% Confidence Interval) of Receiving Breast Conserving Surgery Without Radiation Therapy |
||||
|---|---|---|---|---|---|
| Model 1* | Model 2 | Model 3 | Model 4 | Model 5 | |
| Race/Ethnicity | |||||
| Caucasians | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| African Americans | 1.59 (1.52-1.67) | 1.60 (1.52-1.68) | 1.63 (1.55-1.72) | 1.44 (1.36-1.52) | 1.24 (1.18-1.32) |
| Year of Diagnosis | |||||
| 1992 | - | 1.00 | 1.00 | 1.00 | 1.00 |
| 1993 | - | .99 (.91-1.09) | 1.00 (.92-1.10) | 1.02 (.93-1.12) | 1.02 (.93-1.12) |
| 1994 | - | .89 (.82-.97) | .92 (.84-1.00) | .92 (.84-1.01) | .93 (.84-1.02) |
| 1995 | - | .85 (.78-.92) | .86 (.79-.93) | .85 (.78-.94) | .87 (.79-.95) |
| 1996 | - | .92 (.84-.99) | .94 (.86-1.02) | .98 (.90-1.07) | 1.00 (.91-1.09) |
| 1997 | - | 1.07 (.98-1.16) | 1.10 (1.02-1.20) | 1.17 (1.08-1.28) | 1.21 (1.11-1.32) |
| 1998 | - | .85 (.78-.92) | .87 (.81-.95) | .97 (.89-1.06) | 1.00 (.92-1.09) |
| 1999 | - | 1.01 (.94-1.09) | 1.04 (.96-1.13) | 1.24 (1.14-1.35) | 1.27 (1.17-1.38) |
| 2000 | - | 1.13 (1.04-1.21) | 1.17 (1.08-1.27) | 1.44 (1.33-1.56) | 1.48 (1.36-1.61) |
| 2001 | - | 1.18 (1.09-1.27) | 1.23 (1.14-1.33) | 1.60 (1.47-1.74) | 1.65 (1.51-1.78) |
| 2002 | - | 1.29 (1.20-1.39) | 1.39 (1.29-1.50) | 1.85 (1.70-2.00) | 1.94 (1.79-2.11) |
*
Model 1 was without adjustment for other factors.
Model 2 adjusted for the year of diagnosis.
Model 3 adjusted for patient age (nine categories in five-year interval), marital status, in addition to factor in Model 2.
Model 4 adjusted for tumor stage, size, grade, number of positive lymph nodes, in addition to factors in Model 3.
Model 5 adjusted for the geographic areas (12 SEER regions), in addition to factors in Model 4.