Table 2.
Results of the univariate and multivariate analysis assessing the impact of patient characteristics and the relative proximity of radiotherapy and surgical services to a patient's residence on the choice of treatment modality.
| Proportion of men receiving RT | Proportion of men receiving RP | Unadjusted OR for receipt of RT | P | Adjusted OR for receipt of RT | P | |
|---|---|---|---|---|---|---|
| Treatment options available at nearest centre | n (%) | n (%) | ||||
| Both RT and RP | 4489 (57.3) | 3337 (42.7) | 1 | <0.001 | 1 | <0.001 |
| Only RT available and nearest centre offering RP >15 min extra travel time away | 920 (62.8) | 545 (37.2) | 1.25 (1.11–1.40) | 1.23 (1.08–1.40) | ||
| Only RT available and nearest centre offering RP <15 min extra travel time away | 2044 (55.3) | 1650 (44.7) | 0.93 (0.85–1.01) | 0.90 (0.83–0.98) | ||
| Only RP available and nearest centre offering RT <15 min extra travel time away | 1648 (54.0) | 1404 (46.0) | 0.88 (0.80–0.95) | 0.93 (0.84–1.02) | ||
| Only RP available and nearest centre offering RT >15 min extra travel time away | 308 (52.0) | 284 (48.0) | 0.8 (0.68–0.95) | 0.70 (0.58–0.85) | ||
| Age | ||||||
| <60 years | 896 (26.1) | 2543 (73.9) | 1 | <0.001 | 1 | <0.001 |
| 60–64 years | 1132 (41.1) | 1619 (58.9) | 2.0 (1.79–2.22) | 1.98 (1.78–2.21) | ||
| 65–69 years | 2159 (52.1) | 1989 (47.9) | 3.1 (2.8–3.4) | 3.03 (2.74–3.34) | ||
| 70–74 years | 2818 (74.1) | 985 (25.9) | 8.2 (7.4–9.1) | 8.05 (7.2–9.0) | ||
| ≥75 years | 2395 (96.6) | 85 (3.4) | 79.3 (63.1–99.8) | 78.9 (62.6–99.2) | ||
| Comorbidities: RCS Charlson score | ||||||
| 0 | 7254 (53.5) | 6311 (46.5) | 1 | <0.001 | 1 | <0.001 |
| 1 | 1564 (66.9) | 774 (33.1) | 1.76 (1.61–1.94) | 1.58 (1.42–1.75) | ||
| 2+ | 582 (81.1) | 136 (18.9) | 3.75 (3.10–4.53) | 3.05 (2.48–3.75) | ||
| Deprivation status: national quintiles | ||||||
| 1 (least deprived) | 2484 (57.4) | 1842 (42.6) | 1 | 0.3264 | 1 | <0.001 |
| 2 | 2306 (57.0) | 1739 (43.0) | 0.96 (0.91–1.02) | 1.04 (0.94–1.15) | ||
| 3 | 1938 (56.6) | 1487 (43.4) | 0.97 (0.89–1.07) | 1.06 (095–1.17) | ||
| 4 | 1544 (54.6) | 1283 (45.4) | 0.90 (0.82–1.00) | 1.08 (0.97–1.21) | ||
| 5 (most deprived) | 1128 (56.5) | 870 (43.5) | 0.96 (0.86–1.06) | 1.36 (1.20–1.54) | ||
| Ethnicity | ||||||
| White | 8183 (58.0) | 5924 (42.0) | 1 | <0.001 | 1 | 0.041 |
| Ethnic minority group | 1123 (43.5) | 1194 (56.5) | 0.56 (0.50–0.62) | 0.75 (0.66–0.86) | ||
| Missing | 609 (54.5) | 508 (45.5) | 0.87 (0.77–1.01) | 1.06 (0.92–1.22) | ||
OR, odds ratio; RCS, Royal College of Surgeons; RP, radical prostatectomy; RT, radiation therapy. Travel time – represents the difference in travel time between the patients nearest RP and RT centre. An OR >1 means that the chance of receiving RT is higher than when RT and RP are both offered in the nearest hospital. Statistically significant results in bold font.