Table 1 Determinants of Breast Conserving Surgery Among 722 Cases of Early Stage Breast Cancer
From: The use of breast conserving surgery: linking insurance claims with tumor registry data
Variable | Â | No. of patients | Odds ratio (95% CI) | ||
|---|---|---|---|---|---|
| Â | Â | BCS | Mastectomy | Univariate analysis | Combined analysis |
All | Â | 381 | 341 | Â | Â |
Ethnicity | Caucasian | 71 | 66 | 1 | 1 |
|  | Japanese | 170 | 147 | 1.08 (0.72–1.61) | 0.85 (0.55–1.31) |
|  | Hawaiian | 48 | 40 | 1.12 (0.65–1.91) | 1.24 (0.71–2.17) |
|  | Filipino | 35 | 47 | 0.69 (0.39–1.20) | 0.65 (0.37–1.15) |
|  | Chinese | 32 | 25 | 1.19 (0.64–2.22) | 0.97 (0.50–1.86) |
|  | Other | 24 | 16 | 1.45 (0.71–2.96) | 1.33 (0.64–2.77) |
Residence | Oahu | 299 | 232 | 1.71 (1.23–2.39) | 1.67 (1.17–2.38) |
| Â | Other | 82 | 109 | 1 | 1 |
Age at diagnosis | <50 yrs | 110 | 109 | Continuous (per 10 years) | Â |
|  | 50–64 yrs | 186 | 166 | 1.01 (1.001–1.028) | 1.01 (0.99–1.04) |
| Â | 65+ yrs | 85 | 66 | Â | Â |
Menopausal status | Pre Post | 110 271 | 109 232 | 1 1.16 (0.84–1.59) | 1 0.75 (0.46–1.23) |
Marital status | Married | 262 | 244 | 0.88 (0.64–1.21) | 0.94 (0.68–1.32) |
| Â | Unmarried | 119 | 97 | 1 | 1 |
Health plan | FFS | 330 | 300 | 0.89 (0.57–1.37) | 0.87 (0.55–1.38) |
| Â | HMO | 51 | 41 | 1 | 1 |
TNM stage | I | 266 | 200 | 1 | 1 |
|  | IIA | 86 | 85 | 0.76 (0.54–1.08) | 0.99 (0.66–1.51) |
|  | IIB | 29 | 56 | 0.39 (0.24–0.63) | 0.61 (0.32–1.19) |
Tumor size | <1 cm | 113 | 83 | Continuous | (per 1 cm) |
|  | 1–1.9 cm | 177 | 139 | 0.97 (0.96–0.99) | 0.98 (0.96–1.00) |
| Â | 2 + cm | 91 | 119 | Â | Â |
Tumor grade | Well diff. | 77 | 49 | 1.51 (1.02–2.24) | 1.25 (0.83–1.89) |
| Â | Other | 304 | 292 | 1 | 1 |
Comorbid conditions | 0 | 230 | 201 | Continuous (per score) | Â |
|  | 1 | 109 | 102 | 0.97 (0.78–1.19) | 0.91 (0.72–1.14) |
| Â | 2+ | 42 | 38 | Â | Â |