Table 3.
Impact of travel time and hospital characteristics on patient mobility in 44,363 men undergoing radical radiation therapy between 2010 and 2014 in the English National Health Services
| Parameter | Unadjusted OR (model 1)∗ | 95% CI | P† | Adjusted OR (model 2)‡ | 95% CI | P† |
|---|---|---|---|---|---|---|
| Impact of additional travel time (min) | 1 | <.001 | 1 | <.001 | ||
| <10 | 0.28 | 0.27-0.29 | 0.27 | 0.26-0.28 | ||
| 11-30 | 0.07 | 0.06-0.07 | 0.06 | 0.05-0.06 | ||
| 31-60 | 0.006 | 0.005-0.06 | 0.005 | 0.004-0.005 | ||
| >60 | 0.0002 | 0.0001-0.0002 | 0.0002 | 0.0001-0.0002 | ||
| Impact of hospital characteristics | ||||||
| University hospital | 1.28 | 1.26-1.31 | <.001 | 1.18 | 1.14-1.23 | <.001 |
| Large-scale RT unit | 1.95 | 1.91-1.99 | <.001 | 1.55 | 1.48-1.62 | <.001 |
| Early adopter of IMRT | 1.15 | 1.11-1.20 | <.001 | 1.37 | 1.30-1.46 | <.001 |
| Hypofractionated treatment (standard) | 1.73 | 1.68-1.78 | <.001 | 3.10 | 2.92-3.28 | <.001 |
Abbreviations: CI = confidence interval; IMRT = intensity modulated radiation therapy; OR = odds ratio; RT = radiation therapy.
Model 1 presents unadjusted ORs from the univariate analysis assessing the impact of additional travel time and hospital characteristics on the odds that a patient travels to a particular hospital.
P value based on likelihood ratio test.
Model 2 presents adjusted ORs from the multivariate conditional logit analysis assessing the impact of both additional travel time and hospital characteristics on the odds that a patient travels to a particular hospital.