Table 1

Baseline characteristics of 501 865 UK Biobank participants, by sex

CharacteristicsWomen (n=273 048)Men (n=228 817)
Age (years), mean (SD)56.4 (8.0)56.7 (8.2)
White ethnicity, n (%)257 129 (94.2)214 988 (94.0)
Townsend Deprivation Score
 Fifths, n (%)
 First; least disadvantaged100 996 (37.0)84 877 (37.1)
 Second56 590 (20.7)46 179 (20.2)
 Third41 246 (15.1)33 335 (14.6)
 Fourth36 909 (13.5)30 456 (13.3)
 Fifth; most disadvantaged37 307 (13.7)33 970 (14.8)
Systolic blood pressure (mm Hg), mean (SD)135.3 (19.2)140.9 (17.5)
Diabetes, n (%)
 No diabetes261 403 (95.7)211 320 (92.4)
 Type 1564 (0.2)653 (0.3)
 Type 29936 (3.6)15 506 (6.8)
Smoking, n (%)
 Never161 858 (59.3)111 306 (48.6)
 Former85 349 (31.3)87 508 (38.2)
 Current24 331 (8.9)28 569 (12.5)
Body mass index (kg/m2), mean (SD)27.1 (5.2)27.8 (4.2)
Total cholesterol (mmol/L), mean (SD)5.9 (1.1)5.5 (1.1)
Previous cardiovascular disease, n (%)10 093 (3.7)20 434 (8.9)