Table 1.
The demographics and lifestyle characteristics of participants in the CKB and UKB with valid genetic data and measured BMI.
| Demographic | CKB | UKB | Pa |
|---|---|---|---|
| N | 100,574 | 379,708 | – |
| Mean age at recruitment (SD) | 53.7 (11.0) | 57.2 (8.0) | <1.00E-15 |
| Female, N (%) | 57,573 (57.2) | 204,736 (53.9) | <1.00E-15 |
| Lives in urban region, N (%) | 43,939 (43.7) | 320,127 (85.1) | <1.00E-15 |
| Mean BMI (SD) | 23.7 (3.5) | 27.4 (4.8) | <1.00E-15 |
| Mean WHR (SD) | 0.88 (0.1) | 0.87 (0.1) | – |
| Sleep hours (SD) | 7.37 (1.4) | 7.33 (0.95) | 8.22E-12 |
| Mean MET hours (physical activity metric) (SD) | 6.03 (3.5) | 7.40 (1.1) | <1.00E-15 |
| Smoking status, N (%) | <1.00E-15 | ||
| Never smoker | 60,314 (60.0) | 204,218 (53.8) | – |
| Former smoker | 6921 (6.9) | 134,423 (35.4) | – |
| Current smoker | 27,670 (27.5) | 35,940 (9.5) | – |
| Occasional smoker (CKB)/ Missing (UKB) | 5669 (5.6) | 5127 (1.4) | – |
| Highest education, N (%) | <1.00E-15 | ||
| No formal school | 20,141 (20.0) | 63,515 (16.7) | – |
| University | 2474 (2.5) | 180,127 (47.4) | – |
| Other | 77,959 (77.5) | 132,445 (34.9) | – |
| Missing | 0 (0) | 3621 (1.0) | – |
| Unemployed N (%) | 2901 (2.9) | 6182 (1.6) | <1.00E-15 |
| Has own home N (%yes) | 42,883 (42.6) | 340,318 (91.7) | <1.00E-15 |
| Health satisfaction N (%) | – | – | <1.00E-15 |
| Excellent | 17,187 (17.1) | 64,053 (16.9) | – |
| Good | 27,187 (27.0) | 202,717 (58.4) | – |
| Fair | 44,584 (44.3) | 77,460 (20.5) | – |
| Poor | 11,616 (11.6) | 16,046 (4.2) | – |
| Anxiety N (%) | 682 (0.7) | 6163 (7.5) | <1.00E-15 |
| Depressive symptoms N (%) | 3398 (3.4) | 41,644 (14.4) | <1.00E-15 |
| Major depression N (%) | 760 (0.8) | 29,594 (23.8) | <1.00E-15 |
aP Comparison of people of East Asian (CKB) and European (UKB) ancestry.