Table 3.
Treatment quality metrics for patients not receiving MDC, those having MDC, and the MDCSD subset.
| Unadjusted | Propensity Score-Based Weighted | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No MDC* | MDC | p | No MDCSD* | MDCSD | p | No MDC | MDC | p | No MDC | MDCSD | p | |
| n=86,327 | n=2,538 | n=86,067 | n=357 | (%) | (%) | (%) | ||||||
| Sentinel node biopsy | ||||||||||||
| Performed | 46,772 (54.2%) | 1,841 (72.5%) | <0.001 | 47,227 (54.9%) | 277 (77.6%) | <0.001 | 54.7 | 56.1 | 0.222 | 55.2 | 52.7 | 0.264 |
| Breast Conservation Surgery | ||||||||||||
| +RT | 37,027 (86.2%) | 1,479 (89.0%) | 0.001 | 37,632 (86.3%) | 223 (92.5%) | 0.005 | 86.2 | 90.2 | 0.001 | 86.5 | 92.6 | 0.019 |
| Mastectomy with T3/T4, or ≥ 4 + nodes | ||||||||||||
| +PMRT | 3,780 (51.9%) | 105 (70.5%) | <0.001 | 3,704 (51.9%) | 14 (70.0%) | 0.105 | 52.0 | 63.8 | 0.050 | 51.8 | 89.1 | 0.298 |
| Node positive | ||||||||||||
| Chemotherapy | 10,480 (47.2%) | 289 (47.1%) | 0.949 | 10,357 (46.9%) | 47 (52.2%) | 0.317 | 47.3 | 46.6 | 0.784 | 46.8 | 52.2 | 0.044 |
| Diagnosis to surgery | ||||||||||||
| Mean time (days) | 20.6 | 35.6 | <0.001 | 20.9 | 35.2 | <0.001 | 20.7 | 33.3 | <0.001 | 21.1 | 27.9 | <0.001 |
MDC = patients receiving multidisciplinary care (includes patients receiving MDC on the same date or, different dates).
MDCSD = same-day multidisciplinary care subset.
SD = standard deviation.
RT = radiation therapy.
PMRT = Post mastectomy radiation therapy.
*
Total cohort numbers when evaluating MDC and MDCSD differ due to the need to exclude males and Asians to achieve the propensity score adjustment for the MDCSD group.