Table IV.
Predictors of Total Breast Cancer Care Costs
| Characteristic | CPM and no-CPM (n=452) | Immediate CPM and no-CPM (n=398) | Delayed CPM and no-CPM (n=54) | |||
|---|---|---|---|---|---|---|
| Coefficient* (95% CI) | P Value | Coefficient* (95% CI) | P Value | Coefficient* (95% CI) | P Value | |
| Surgery | ||||||
| No CPM | Reference | Reference | Reference | |||
| CPM | 1.169 (1.099, 1.243) | <0.0001 | 1.189 (1.109, 1.274) | <0.0001 | 1.128 (1.025, 1.242) | 0.0139 |
| Year of Diagnosis | ||||||
| 1997–2001 | Reference | Reference | Reference | |||
| 2002–2005 | 1.263 (1.102, 1.447) | 0.0008 | 1.271 (1.097, 1.473) | 0.0014 | 1.271 (1.007, 1.605) | 0.0438 |
| 2006–2009 | 1.132 (0.989, 1.296) | 0.0730 | 1.132 (0.980, 1.308) | 0.0926 | 1.164 (0.908, 1.492) | 0.2294 |
| Charlson Score | ||||||
| 0 | Reference | Reference | Reference | |||
| 1 | 1.048 (0.935, 1.175) | 0.4161 | 1.063 (0.943, 1.199) | 0.3140 | 0.838 (0.617, 1.139) | 0.2599 |
| 2+ | 1.230 (1.036, 1.459) | 0.0180 | 1.267 (1.060, 1.515) | 0.0093 | 0.814 (0.685, 0.967) | 0.0192 |
| Method of payment | ||||||
| Private Insurance | Reference | Reference | Reference | |||
| Government Insurance | 1.152 (1.036, 1.281) | 0.0088 | 1.147 (1.026, 1.283) | 0.0161 | 1.436 (1.139, 1.809) | 0.0022 |
| Indigent Fund | 1.115 (0.849, 1.466) | 0.4325 | 1.241 (1.011, 1.522) | 0.0386 | 0.150 (0.129, 0.174) | <0.0001 |
| Self-pay | 0.904 (0.722, 1.131) | 0.3761 | 0.943 (0.744, 1.195) | 0.6274 | 0.773 (0.600, 0.995) | 0.0456 |
| Unknown | 1.172 (0.965, 1.423) | 0.1087 | 1.146 (0.928, 1.415) | 0.2063 | 1.318 (1.050, 1.654) | 0.0174 |
| Number of Nodes Positive | ||||||
| 1 unit increase | 1.0228 (1.013, 1.033) | <0.0001 | 1.026 (1.014, 1.039) | <0.0001 | 1.002 (0.993, 1.012) | 0.6350 |
| Tumor Size | ||||||
| 1 unit increase | 1.0576 (1.035, 1.081) | <0.0001 | 1.064 (1.037, 1.092) | <0.0001 | 1.007 (0.984, 1.030) | 0.5661 |
| ER/PR status | ||||||
| Negative | Reference | Reference | Reference | |||
| Positive | 0.810 (0.742, 0.884) | <0.0001 | 0.804 (0.729, 0.887) | <0.0001 | 0.899 (0.777, 1.040) | 0.1527 |
| HER-2/neu status | ||||||
| Negative | Reference | Reference | Reference | |||
| Positive | 1.308 (1.182, 1.447) | <0.0001 | 1.345 (1.200, 1.506) | <0.0001 | 1.046 (0.909, 1.203) | 0.5314 |
| Radiation | ||||||
| No | Reference | Reference | Reference | |||
| Yes | 1.572 (1.439, 1.718) | <0.0001 | 1.577 (1.429, 1.739) | <0.0001 | 1.398 (1.193, 1.637) | <0.0001 |
| Reconstruction | ||||||
| No | Reference | Reference | Reference | |||
| Yes | 1.763 (1.598, 1.945) | <0.0001 | 1.814 (1.628, 2.022) | <0.0001 | 1.270 (1.110, 1.452) | 0.0005 |
*
Coefficients were obtained from exponentiating estimates from multivariable regression of log-transformed total costs.