Table 1.
Characteristics of the pandemic cohort.
| Incident diagnoses of psychiatric disorder analysis | Incident prescriptions of psychotropic medication analysis | |||
|---|---|---|---|---|
| Tested for COVID-19 (n = 86,529) | Total (n = 308,400) | Tested for COVID-19 (n = 56,025) | Total (n = 213,757) | |
| Mean Age at study period | 68.6 (8.2) | 68.2 (8.1) | 68.2 (8.3) | 67.9 (8.1) |
| Age at study period | ||||
| Lower than median (<69 years) | 38,652 (44.7%) | 143,434 (46.5%) | 26,095 (46.6%) | 102,662 (48.0%) |
| Higher than median (≥69 years) | 47,877 (55.3%) | 164,966 (53.5%) | 29,930 (53.4%) | 111,095 (52.0%) |
| Sex | ||||
| Female | 43,407 (50.2%) | 160,555 (52.1%) | 25,248 (45.1%) | 102,014 (47.7%) |
| Male | 43,122 (49.8%) | 147,845 (47.9%) | 30,777 (54.9%) | 111,743 (52.3%) |
| Townsend deprivation index | ||||
| Lower than median (<−2.15) | 43,348 (50.1%) | 157,725 (51.1%) | 28,266 (50.5%) | 110,227 (51.6%) |
| Higher than median (≥−2.15) | 43,069 (49.8%) | 150,315 (48.7%) | 27,690 (49.4%) | 103,262 (48.3%) |
| Unknown | 112 (0.1%) | 360 (0.1%) | 69 (0.1%) | 268 (0.1%) |
| Ethnicity | ||||
| White | 80,465 (93.0%) | 287,622 (93.3%) | 52,204 (93.2%) | 199,806 (93.5%) |
| Mixed | 548 (0.6%) | 1860 (0.6%) | 368 (0.7%) | 1280 (0.6%) |
| Black | 2304 (2.7%) | 8203 (2.7%) | 1407 (2.5%) | 5455 (2.6%) |
| Asian | 1834 (2.1%) | 5974 (1.9%) | 1156 (2.1%) | 3996 (1.9%) |
| Other | 935 (1.1%) | 3042 (1.0%) | 592 (1.1%) | 2045 (1.0%) |
| Unknown | 452 (0.5%) | 1699 (0.6%) | 298 (0.5%) | 1175 (0.5%) |
| Annual Income | ||||
| ≤£ 18,000 | 14,624 (16.9%) | 51,482 (16.7%) | 8408 (15.0%) | 32,427 (15.2%) |
| £ 18,000–£ 30,999 | 17,945 (20.7%) | 65,657 (21.3%) | 11,330 (20.2%) | 44,882 (21.0%) |
| £ 31,000–£ 51,999 | 19,402 (22.4%) | 70,671 (22.9%) | 13,062 (23.3%) | 50,497 (23.6%) |
| £ 52,000–£ 100,000 | 16,131 (18.6%) | 57,775 (18.7%) | 11,506 (20.5%) | 43,253 (20.2%) |
| ≥£ 100,000 | 5378 (6.2%) | 16,337 (5.3%) | 4085 (7.3%) | 12,838 (6.0%) |
| Unknown | 13,049 (15.1%) | 46,478 (15.1%) | 7634 (13.6%) | 29,860 (14.0%) |
| College education | ||||
| Without | 42,749 (49.4%) | 152,771 (49.5%) | 27,123 (48.4%) | 103,999 (48.7%) |
| With | 28,081 (32.5%) | 102,532 (33.2%) | 20,346 (36.3%) | 77,723 (36.4%) |
| Unknown | 15,699 (18.1%) | 53,097 (17.2%) | 8556 (15.3%) | 32,035 (15.0%) |
| Body mass index, kg/m2a | ||||
| <18.5 | 318 (0.4%) | 1379 (0.4%) | 206 (0.4%) | 1007 (0.5%) |
| 18.5–24.9 | 26,402 (30.5%) | 101,551 (32.9%) | 17,858 (31.9%) | 73,030 (34.2%) |
| 25–29.9 | 37,425 (43.3%) | 133,261 (43.2%) | 24,543 (43.8%) | 93,138 (43.6%) |
| ≥30 | 21,866 (25.3%) | 70,586 (22.9%) | 13,087 (23.4%) | 45,538 (21.3%) |
| Unknown | 518 (0.6%) | 1623 (0.5%) | 331 (0.6%) | 1044 (0.5%) |
| Charlson comorbidity indexb | ||||
| 0 | 48,638 (56.2%) | 205,458 (66.6%) | 33,683 (60.1%) | 149,850 (70.1%) |
| ≥1 | 37,891 (43.8%) | 102,942 (33.4%) | 22,342 (39.9%) | 63,907 (29.9%) |
aThe Body mass index was calculated using weight kilograms (kg) by the square of height in meters (m2).
bThe Charlson comorbidity index was calculated based on the UK Biobank inpatient hospital data.