Table 5.
Factors significantly associated with interval to radiotherapy of over six weeks in multivariable logistic regression analysis
| Variable | Odds ratio (95% CI) | P value |
|---|---|---|
| Charlson score: | ||
| 0 | 1.0 (reference) | 0.030 |
| 1 | 1.11 (1.02 to 1.21) | |
| 2 | 1.12 (0.93 to 1.33) | |
| ≥3 | 0.89 (0.72 to 1.09) | |
| Race: | ||
| White | 1.0 (reference) | <0.001 |
| Black | 1.45 (1.24 to 1.68) | |
| Other | 0.94 (0.79 to 1.12) | |
| Hispanic: | ||
| No | 1.0 (reference) | 0.006 |
| Yes | 1.29 (1.08 to 1.54) | |
| State buy-in: | ||
| No | 1.0 (reference) | <0.001 |
| Yes | 1.27 (1.15 to 1.42) | |
| Region: | ||
| South | 1.0 (reference) | <0.001 |
| Northeast | 1.66 (1.46 to 1.88) | |
| Midwest | 1.31 (1.15 to 1.49) | |
| West | 1.35 (1.20 to 1.52) | |
| Positive nodes: | ||
| 0 | 1.0 (reference) | <0.001 |
| 1-3 or unknown | 1.21 (1.06 to 1.37) | |
| ≥4 | 1.23 (0.81 to 1.87) | |
| Not examined | 0.76 (0.70 to 0.81) | |
| Unknown | 0.91 (0.79 to 1.66) | |
| Per each additional year after 1991 | 1.07 (1.05 to 1.08) | <0.001 |