Table 3.
Multivariable Cox proportional hazards regression for overall survival in the matched cohort.
| All patients | ||
|---|---|---|
| (n = 1,079) | ||
| Variable | Hazard ratio | p-value |
| (95% CIs) | ||
| Treatment group (TNT vs. nCRT) | 1.21 (0.87, 1.69) | 0.25 |
| Age (≥ 65 yr vs. < 65 yr) | 1.86 (1.30, 2.65) | 0.001 |
| Sex (female vs. male) | 0.85 (0.60, 1.19) | 0.34 |
| Charlson-Deyo co-morbidity score | ||
| 0 | 1.0 (ref) | 0.30 |
| 1 | 1.37 (0.91, 2.08) | |
| ≥2 | 1.29 (0.46, 3.59) | |
| Clinical stage (> 2 vs. ≤ 2) | 1.39 (0.96, 1.99) | 0.077 |
| Grade | ||
| Well/moderately differentiated | 1.0 (ref) | 0.099 |
| Poorly differentiated/anaplastic | 1.52 (0.95, 2.43) | |
| Unknown | 0.76 (0.44, 1.30) | |
| Type of facility (academic vs. non-academic) | 0.96 (0.68, 1.35) | 0.80 |
| Median income quartiles | ||
| <$38,000 | 1.0 (ref) | 0.002 |
| $38,000-$47,999 | 0.90 (0.55, 1.47) | |
| $48,000-$62,999 | 0.48 (0.28, 0.82) | |
| ≥$63,000 | 0.51 (0.32, 0.82) | |
Bold font indicates statistically significant difference with p < 0.05.