Table 1. Patient Baseline Characteristics.
| Variable | Frequency, No. (%) | ||
|---|---|---|---|
| Breast Cancer (n = 78 302) | Cervical Cancer (n = 126 731) | Colorectal Cancer (n = 145 550) | |
| Age, mean (SD), y | 61.8 (7.1) | 42.6 (13.2) | 62.4 (7.0) |
| ADI quintile | |||
| 1 | 12 934 (16.5) | 21 192 (16.7) | 24 106 (16.6) |
| 2 | 28 244 (36.1) | 43 844 (34.6) | 53 253 (36.6) |
| 3 | 23 049 (29.4) | 36 328 (28.7) | 42 780 (29.4) |
| 4 | 11 298 (14.4) | 19 651 (15.5) | 20 392 (14.0) |
| 5 | 2777 (3.5) | 5716 (4.5) | 5019 (3.4) |
| Rural status | |||
| Urban | 27 948 (35.7) | 49 889 (39.4) | 51 100 (35.1) |
| Rural | 48 779 (62.3) | 74 866 (59.1) | 91 556 (62.9) |
| Highly rural | 1575 (2.0) | 1976 (1.6) | 2894 (2.0) |
| Charlson Comorbidity Index score | |||
| 1 | 49 646 (63.4) | 102 423 (80.8) | 89 349 (61.4) |
| 2 | 14 026 (17.9) | 15 906 (12.6) | 26 761 (18.4) |
| 3 | 7878 (10.1) | 5251 (4.1) | 15 024 (10.3) |
| ≥4 | 3236 (4.1) | 1651 (1.3) | 6831 (4.7) |
| Race | |||
| White | 74 923 (95.7) | 115 937 (91.5) | 139 122 (95.6) |
| Nonwhite | 3379 (4.3) | 10 794 (8.5) | 6428 (4.4) |
| Sex | |||
| Female | NA | NA | 77 048 (52.9) |
| Male | NA | NA | 68 502 (47.1) |
Abbreviations: ADI, area deprivation index (higher ADIs indicate greater deprivation); NA, not applicable.