Table 5.
Crude and adjusted ORs and 95% CIs for surgical treatment
| Factor | Number of cases | Surgical cases, number (%) | OR (95% CI) |
|
| Unadjusted | Adjusted* | |||
| Age at diagnosis (years) | ||||
| <50 | 3800 | 3587 (94.4) | 1.00 (–) | 1.00 (–) |
| 50–59 | 3739 | 3557 (95.1) | 1.16 (0.95 to 1.42) | 0.99 (0.80 to 1.22) |
| 60–69 | 3042 | 2823 (92.8) | 0.77 (0.63 to 0.93) | 0.73 (0.59 to 0.89) |
| 70–79 | 2643 | 2117 (80.1) | 0.24 (0.20 to 0.28) | 0.27 (0.23 to 0.33) |
| ≥80 | 1813 | 951 (52.5) | 0.07 (0.06 to 0.08) | 0.09 (0.07 to 0.10) |
| Ethnicity | ||||
| Non-white | 2058 | 1820 (88.4) | 1.00 (–) | 1.00 (–) |
| White | 9098 | 8109 (89.1) | 1.07 (0.92 to 1.25) | 1.39 (1.16 to 1.65) |
| Not known | 3881 | 3106 (80.0) | 0.52 (0.45 to 0.61) | 0.93 (0.77 to 1.11) |
| Distant metastases at diagnosis | ||||
| No | 8289 | 7609 (91.8) | 1.00 (–) | 1.00 (–) |
| Yes | 427 | 276 (64.6) | 0.16 (0.13 to 0.20) | 0.16 (0.12 to 0.20) |
| Not known | 6321 | 5150 (81.5) | 0.39 (0.36 to 0.43) | 0.36 (0.31 to 0.40) |
| Charlson Index (comorbidities) | ||||
| 0 (minor) | 6958 | 6649 (95.6) | 1.00 (–) | 1.00 (–) |
| 1 (moderate) | 407 | 360 (88.5) | 0.36 (0.26 to 0.49) | 0.70 (0.49 to 0.99) |
| 2+ (severe) | 1615 | 1434 (88.8) | 0.37 (0.30 to 0.45) | 0.50 (0.41 to 0.62) |
| Not known | 6057 | 4592 (75.8) | 0.15 (0.13 to 0.17) | 0.20 (0.17 to 0.23) |
| Diagnosis date (in relation to Cancer Plan) | ||||
| Pre 2000 | 9681 | 8345 (86.2) | 1.00 (–) | 1.00 (–) |
| 2000–2003 | 4189 | 3667 (87.5) | 1.12 (1.01 to 1.25) | 1.11 (0.97 to 1.27) |
| Post 2003 | 1167 | 1023 (87.7) | 1.14 (0.95 to 1.37) | 0.75 (0.60 to 0.94) |
| Presentation | ||||
| Screening | 2297 | 2236 (97.3) | 1.00 (–) | 1.00 (–) |
| Symptoms | 10 294 | 8767 (85.2) | 0.16 (0.12 to 0.20) | 0.34 (0.26 to 0.45) |
| Incidental | 592 | 475 (80.2) | 0.11 (0.08 to 0.15) | 0.28 (0.20 to 0.40) |
| Not known | 1854 | 1557 (84.0) | 0.14 (0.11 to 0.19) | 0.39 (0.29 to 0.53) |
*
Adjusted for all other factors—that is, based on model that includes all factors.