Table 1. Characteristics of Included Patients.
| Characteristic | Patients, No. (%) (N = 806 910) |
|---|---|
| Sex | |
| Female | 401 749 (49.8) |
| Male | 405 161 (50.2) |
| Age, y | |
| 18-39 | 38 414 (4.8) |
| 40-49 | 65 108 (8.1) |
| 50-59 | 146 691 (18.2) |
| 60-69 | 216 709 (26.9) |
| ≥70 | 339 988 (42.1) |
| Severe psychiatric illness historya | |
| Inpatient | 6590 (0.8) |
| Outpatient | 14 257 (1.8) |
| Other | 296 112 (36.7) |
| None | 489 951 (60.8) |
| Prior self-injury | 2807 (0.3) |
| Material deprivation quintile | |
| 1, least deprived | 166 023 (20.6) |
| 2 | 160 241 (19.9) |
| 3 | 158 662 (19.7) |
| 4 | 159 413 (19.8) |
| 5, most deprived | 160 089 (19.9) |
| Missing | 2078 (0.3) |
| Residence | |
| Urban | 724 827 (89.8) |
| Rural | 81 538 (10.1) |
| Missing | 545 (0.1) |
| High comorbidity burden (>4) | 75 909 (9.4) |
| Primary cancer site | |
| Bronchopulmonary | 103 079 (12.8) |
| Bone, sarcoma, and PNS | 1659 (0.2) |
| Breast | 112 943 (14.0) |
| CNS | 10 669 (1.3) |
| Endocrine | 32 335 (4.0) |
| Gastrointestinal | 152 092 (18.8) |
| Genitourinary | 170 480 (21.1) |
| Gynecologic | 49 676 (6.2) |
| Hematopoietic and lymphoma | 93 683 (11.6) |
| Head and neck | 19 220 (2.4) |
| Skin | 36 842 (4.6) |
| Other | 24 232 (3.0) |
| Cancer stage at diagnosis | |
| 0 | 1735 (0.2) |
| I | 149 662 (18.5) |
| II | 144 590 (17.9) |
| III | 94 262 (11.7) |
| IV | 108 191 (13.4) |
| Missing | 308 470 (38.2) |
Abbreviations: CNS, central nervous system; PNS, peripheral nervous system.
a
In 5 years prior to cancer diagnosis.