Table 1 Descriptive statistics of main sociodemographic factors
From: Assessing volumetric brain differences in migraine and depression patients: a UK Biobank study
Migraine N = 712 | Depression N = 1 853 | Controls N = 43 930 | |
|---|---|---|---|
Sex | |||
Women | 527 (74%) | 1 180 (64%) | 22 881 (52%) |
Men | 185 (26%) | 673 (36%) | 21 049 (48%) |
Age (mean ± SD) | 63 ± 8 | 63 ± 8 | 64 ± 8 |
BMI (mean ± SD) | 27 ± 5 | 28 ± 5 | 26 ± 4 |
Ethnic background | |||
British | 644 (90%) | 1 701 (92%) | 39 962 (91%) |
Irish | 18 (2%) | 54 (3%) | 1 122 (3%) |
Any other white background | 25 (4%) | 54 (3%) | 1 364 (3%) |
Others | 25 (4%) | 44 (2%) | 1 482 (3%) |
IMD (median, IQR) | 12 [7, 21] | 13 [8, 25] | 11 [7, 20] |
Current tobacco smoking | |||
Yes, on most or all days | 14 (2%) | 89 (5%) | 828 (2%) |
Only occasionally | 10 (1%) | 49 (3%) | 569 (1%) |
No | 682 (97%) | 1 696 (92%) | 42 223 (97%) |
Prefer not to answer | 0 (0%) | 0 (0%) | 8 (0%) |
Alcohol intake frequency | |||
Daily or almost daily | 60 (8%) | 295 (16%) | 7 389 (17%) |
Three or four times a week | 136 (20%) | 301 (16%) | 12 426 (28%) |
Once or twice a week | 174 (25%) | 241 (12%) | 11 596 (26%) |
One or three times a month | 97 (13%) | 400 (21%) | 5 009 (12%) |
Special occasions only | 135 (20%) | 377 (19%) | 4 447 (11%) |
Never | 104 (14%) | 295 (16%) | 2 745 (6%) |
Prefer not to answer | 0 (0%) | 1 (0%) | 16 (0%) |