Table 2.
Multivariate analysis of association with time to disease recurrence.
| Category | Variable | 95% confidence interval |
|||
|---|---|---|---|---|---|
| HR | Lower | Upper | p-Value | ||
| Age at diagnosis | 1-year increase | 1.06 | 0.98 | 1.14 | 0.17 |
| Gender | Male (vs. female) | 34.2 | 0.81 | 1.438 | 0.064 |
| ECOG | 1 or 2 (vs. 0) | 0.77 | 0.21 | 2.79 | 0.69 |
| Smoking status | Current or former smoker (vs. non-smoker) | 1.68 | 0.53 | 5.35 | 0.38 |
| HPV p16 | Negative (vs. positive) | 1.44 | 0.28 | 7.29 | 0.66 |
| Not documented (vs. positive) | 1.94 | 0.49 | 7.72 | 0.35 | |
| Negative (vs. not documented) | 0.74 | 0.11 | 5.10 | 0.76 | |
| BMI at RT start | 1-U increase | 1.15 | 1.00 | 1.33 | 0.049 |
| Percent BMI loss | 1% greater loss | 0.85 | 0.73 | 1.00 | 0.045 |
| PEG timing | Placed prior to treatment initiation (vs. no) | 9.85 | 1.58 | 60.6 | 0.014 |
| Placed during treatment (vs. no) | 0.43 | 0.09 | 2.11 | 0.30 | |
HR, hazard ratio; RT, radiation therapy; PEG, percutaneous endoscopic gastrostomy tube.