No Treatment vs. Treatment | Univariate Analysis | Multivariate Analysis | ||||
---|---|---|---|---|---|---|
Variable | OR | 95% CI | P-value | OR | 95% CI | P-value |
Elderly vs. Non-Elderly | 2.13 | 2.07–2.20 | < 0.0001 | 1.97 | 1.90–2.03 | < 0.0001 |
Female vs. male | 1.13 | 1.10–1.17 | < 0.0001 | 1.13 | 1.09–1.16 | < 0.0001 |
White vs. non-white | 0.91 | 0.87–0.95 | < 0.0001 | 0.84 | 0.80–0.87 | < 0.0001 |
Academic vs. non-academic | 0.93 | 0.90–0.96 | < 0.0001 | 0.98 | 0.94–1.01 | 0.1751 |
Private vs. non-private insurance | 0.56 | 0.54–0.58 | < 0.0001 | 0.77 | 0.75–0.81 | < 0.0001 |
Median income (≥$48,000 vs. <$48,000) | 1.07 | 1.04–1.10 | < 0.0001 | 1.06 | 1.03–1.10 | 0.0002 |
County location (Metropolitan vs. non-metropolitan) | 1.03 | 0.99–1.07 | 0.1080 | – | – | – |
Clinical stage IIIB vs. stage IIIA | 0.97 | 0.94–1.00 | 0.0406 | 1.02 | 0.99–1.05 | 0.2312 |
Distance to closest facilitya | 0.98 | 0.97–0.99 | 0.0006 | 1.01 | 1.00–1.02 | 0.1479 |
Charlson-Deyo score (1 vs. 0) | 1.40 | 1.35–1.44 | < 0.0001 | 1.33 | 1.29–1.37 | < 0.0001 |