Sociodemographic and clinic differences between the control cohort and the cancelled cohort
| Variable | Control cohort, no. (%) n = 199 599 | Cancelled cohort, no. (%) n = 3539 | Standardized difference |
|---|---|---|---|
| Age, yr | |||
| < 56 | 60 430 (30.3) | 1186 (33.5) | 0.07 |
| 56–65 | 55 585 (27.8) | 946 (26.7) | 0.02 |
| 66–75 | 50 765 (25.4) | 833 (23.5) | 0.04 |
| ≥ 76 | 32 819 (16.4) | 574 (16.2) | 0.01 |
| Gender | |||
| Female | 116 912 (58.6) | 2012 (56.9) | 0.03 |
| Male | 82 687 (41.4) | 1527 (43.1) | 0.03 |
| Charlson Comorbidity Index score | |||
| 0 | 57 503 (28.8) | 604 (17.1) | 0.28 |
| 1 | 10 440 (5.2) | 111 (3.1) | 0.11 |
| ≥ 2 | 81 767 (41.0) | 2382 (67.3) | 0.55 |
| No score | 49 889 (25.0) | 442 (12.5) | 0.32 |
| Cancer site | |||
| Breast | 49 050 (24.6) | 898 (25.4) | 0.02 |
| Lung | 11 717 (5.9) | 170 (4.8) | 0.05 |
| Prostate | 19 782 (9.9) | 440 (12.4) | 0.08 |
| Genitourinary | 21 808 (10.9) | 580 (16.4) | 0.16 |
| Gastrointestinal | 33 959 (17.0) | 456 (12.9) | 0.12 |
| Gynaecologic | 18 791 (9.4) | 398 (11.2) | 0.06 |
| Other | 44 492 (22.3) | 597 (16.9) | 0.14 |
| Income quintile | |||
| Quintile 1 (lowest) | 39 450 (19.8) | 709 (20.0) | 0.01 |
| 2 | 39 506 (19.8) | 685 (19.4) | 0.01 |
| 3 | 40 584 (20.3) | 719 (20.3) | 0.00 |
| 4 | 38 122 (19.1) | 666 (18.8) | 0.01 |
| Quintile 5 (highest) | 40 995 (20.5) | 733 (20.7) | 0.00 |
| LHIN region | |||
| Toronto | 43 397 (21.7) | 745 (21.1) | 0.01 |
| West | 58 256 (29.2) | 961 (27.2) | 0.04 |
| Central | 42 908 (21.5) | 898 (25.4) | 0.09 |
| East | 43 737 (21.9) | 810 (22.9) | 0.02 |
| North | 11 301 (5.7) | 125 (3.5) | 0.11 |
LHIN = Local Health Integration Network.