Table 1.
Patient Level Characteristics Stratified by Sex
| Characteristic | Overall (N = 63,939*) | Female (N = 35,097*) | Male (N = 28,842*) |
|---|---|---|---|
| Age | 56 (8.0) | 56 (7.9) | 56 (8.2) |
| Ethnicity | |||
| White | 58,915 (92.1%) | 32,204 (91.8%) | 26,711 (92.6%) |
| Black | 1,614 (2.5%) | 979 (2.8%) | 635 (2.2%) |
| Asian | 1,477 (2.3%) | 767 (2.2%) | 710 (2.5%) |
| Other | 822 (1.3%) | 486 (1.4%) | 336 (1.2%) |
| Mixed | 521 (0.8%) | 339 (1.0%) | 182 (0.6%) |
| Chinese | 248 (0.4%) | 153 (0.4%) | 95 (0.3%) |
| Prefer not to say | 226 (0.4%) | 109 (0.3%) | 117 (0.4%) |
| Missing | 116 (0.2%) | 60 (0.2%) | 56 (0.2%) |
| Height (cm) | 169 (9.2) | 163 (6.3) | 176 (6.7) |
| Townsend deprivation quintiles | |||
| 1 | 20,388 (31.9%) | 10,995 (31.3%) | 9,393 (32.6%) |
| 2 | 13,277 (20.8%) | 7,266 (20.7%) | 6,011 (20.8%) |
| 3 | 11,828 (18.5%) | 6,618 (18.9%) | 5,210 (18.1%) |
| 4 | 11,170 (17.5%) | 6,304 (18.0%) | 4,866 (16.9%) |
| 5 | 7,204 (11.3%) | 3,877 (11.0%) | 3,327 (11.5%) |
| Missing | 72 (0.1%) | 37 (0.1%) | 35 (0.1%) |
| Income (in GBP) | |||
| Less than 18,000 | 9,802 (15.3%) | 5,696 (16.2%) | 4,106 (14.2%) |
| 18,000 to 30,999 | 13,569 (21.2%) | 7,584 (21.6%) | 5,985 (20.8%) |
| 31,000 to 51,999 | 15,261 (23.9%) | 8,061 (23.0%) | 7,200 (25.0%) |
| 52,000 to 100,000 | 13,530 (21.2%) | 6,745 (19.2%) | 6,785 (23.5%) |
| Greater than 100,000 | 4,431 (6.9%) | 2,138 (6.1%) | 2,293 (8.0%) |
| Prefer not to say | 7,104 (11.1%) | 4,741 (13.5%) | 2,363 (8.2%) |
| Missing | 242 (0.4%) | 132 (0.4%) | 110 (0.4%) |
| Education | |||
| Degree | 23,875 (37.3%) | 12,729 (36.3%) | 11,146 (38.6%) |
| O levels, CSEs, or equivalent | 15,840 (24.8%) | 9,227 (26.3%) | 6,613 (22.9%) |
| A levels, professional, or equivalent | 13,730 (21.5%) | 7,344 (20.9%) | 6,386 (22.1%) |
| None | 8,256 (12.9%) | 4,350 (12.4%) | 3,906 (13.5%) |
| Missing | 2,238 (3.5%) | 1,447 (4.1%) | 791 (2.7%) |
| Fluid intelligence† | 6 (2.1) | 6 (2.1) | 6 (2.2) |
| Birth order | |||
| 1 | 35,661 (55.8%) | 19,803 (56.4%) | 15,858 (55.0%) |
| 2 | 20,216 (31.6%) | 10,855 (30.9%) | 9,361 (32.5%) |
| 3 | 4,034 (6.3%) | 2,237 (6.4%) | 1,797 (6.2%) |
| 4 | 3,989 (6.2%) | 2,182 (6.2%) | 1,807 (6.3%) |
| Missing | 39 (0.1%) | 20 (0.1%) | 19 (0.1%) |
GBP, pound sterling; CSE, certificate of secondary education.
*
Mean (SD) for continuous variables; n (%) for categorical variables.
†
Continuous variable with missing data (2.7%).