Table 2.
Multivariable analysis of factors associated with the use of MDC and MDCSD.
| MDC (n=2,538 (2.8%)) | MDCSD (n=357 (0.40%)) | |||||||
|---|---|---|---|---|---|---|---|---|
| Odds Ratio | [95% CI] | p | Odds Ratio | [95% CI] | p | |||
| Age of Diagnosis | 0.99 | 0.98 | 0.99 | <0.001 | 1.00 | 0.98 | 1.01 | 0.678 |
| Year of Diagnosis | 1.13 | 1.11 | 1.14 | <0.001 | 1.13 | 1.10 | 1.17 | <0.001 |
| Gender | ||||||||
| Male | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Female | 1.57 | 0.90 | 2.73 | 0.114 | * | |||
| Charlson Comorbidity Index | 1.01 | 0.96 | 1.06 | 0.765 | 0.93 | 0.80 | 1.07 | 0.303 |
| Elixhauser Comorbidity Score | 1.00 | 0.99 | 1.02 | 0.705 | 0.99 | 0.95 | 1.03 | 0.493 |
| Race | ||||||||
| White | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Black | 1.65 | 1.41 | 1.94 | <0.001 | 3.22 | 2.31 | 4.48 | <0.001 |
| Asian | 0.40 | 0.26 | 0.62 | <0.001 | 1.00 | * | ||
| Hispanic | 0.96 | 0.60 | 1.53 | 0.860 | 0.40 | 0.06 | 2.92 | 0.369 |
| Other/Unknown | 0.88 | 0.64 | 1.20 | 0.420 | 0.70 | 0.26 | 1.90 | 0.483 |
| Marital Status | ||||||||
| Not married | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Married | 0.94 | 0.86 | 1.02 | 0.117 | 0.99 | 0.80 | 1.24 | 0.947 |
| Region | ||||||||
| Northeast | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Midwest | 3.67 | 3.17 | 4.25 | <0.001 | 5.17 | 3.68 | 7.25 | <0.001 |
| West | 2.18 | 1.92 | 2.48 | <0.001 | 1.64 | 1.18 | 2.28 | 0.003 |
| South | 1.27 | 1.09 | 1.49 | 0.003 | 0.23 | 0.12 | 0.44 | <0.001 |
| Population Density | ||||||||
| Big Metro | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Metro | 0.82 | 0.74 | 0.90 | <0.001 | 0.56 | 0.43 | 0.74 | <0.001 |
| Urban | 0.78 | 0.65 | 0.94 | 0.008 | 0.57 | 0.34 | 0.96 | 0.034 |
| Less Urban/Rural | 0.54 | 0.45 | 0.65 | <0.001 | 0.32 | 0.19 | 0.54 | <0.001 |
| Median Education | 0.99 | 0.98 | 0.99 | <0.001 | 0.99 | 0.97 | 1.00 | 0.030 |
| Median Income | 1.00 | 1.00 | 1.00 | 0.505 | 1.00 | 1.00 | 1.00 | 0.089 |
| Tumor Size (mm) | 1.00 | 1.00 | 1.00 | 0.552 | 0.99 | 0.98 | 1.00 | 0.167 |
| AJCC Stage | ||||||||
| Stage I | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Stage II | 1.06 | 0.95 | 1.18 | 0.286 | 1.01 | 0.75 | 1.36 | 0.963 |
| Stage III | 0.98 | 0.76 | 1.26 | 0.880 | 1.13 | 0.56 | 2.28 | 0.733 |
| Histology | ||||||||
| Ductal | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Lobular | 1.11 | 0.97 | 1.26 | 0.128 | 1.29 | 0.93 | 1.79 | 0.131 |
| Other/Unknown | 1.09 | 0.83 | 1.43 | 0.524 | 1.00 | 0.47 | 2.15 | 0.994 |
| Elixscore | 1.00 | 0.99 | 1.02 | 0.705 | 0.99 | 0.95 | 1.03 | 0.493 |
| Tumor Grade | ||||||||
| Well | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Moderate | 1.07 | 0.97 | 1.18 | 0.192 | 0.97 | 0.75 | 1.26 | 0.847 |
| Poor | 1.02 | 0.90 | 1.15 | 0.793 | 0.92 | 0.67 | 1.26 | 0.614 |
| Undifferentiated | 1.23 | 0.83 | 1.83 | 0.309 | 1.07 | 0.33 | 3.42 | 0.910 |
| Missing | 0.82 | 0.67 | 1.00 | 0.049 | 0.55 | 0.30 | 1.00 | 0.050 |
| First Breast Cancer | 1.50 | 1.34 | 1.67 | <0.001 | 1.18 | 0.87 | 1.60 | 0.300 |
| Lumpectomy | ||||||||
| No | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Yes | 1.17 | 1.05 | 1.30 | 0.003 | 0.56 | 0.43 | 0.73 | <0.001 |
| Nodes Examined | 0.98 | 0.98 | 0.99 | <0.001 | 0.99 | 0.97 | 1.01 | 0.177 |
| Nodes Positive | 1.00 | 0.98 | 1.02 | 0.955 | 0.95 | 0.88 | 1.02 | 0.161 |
| Chemotherapy | ||||||||
| No | 1.00 | Referent | -- | 1.00 | Referent | -- | 1.01 | 0.177 |
| Yes | 1.05 | 0.94 | 1.16 | 0.389 | 1.18 | 0.90 | 1.54 | 0.240 |
| Radiotherapy | ||||||||
| No | 1.00 | Referent | -- | 1.00 | Referent | -- | ||
| Yes | 1.44 | 1.31 | 1.58 | <0.001 | 2.07 | 1.60 | 2.69 | <0.001 |
MDC = multidisciplinary care, all patients receiving multidisciplinary care (includes patients receiving MDC on samedate, and different dates). MDCSD = same-day multidisciplinary care. SD = standard deviation. Cens = census-derived