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. 2019 Jul 10;4(8):788–795. doi: 10.1001/jamacardio.2019.2202

Table 1. Summary of Characteristics of 329 237 Participants of White British Ancestry Included in the Final Analysis.

Characteristic No. (%)
All (N = 329 237) Men (n = 151 496) Women (n = 177 741)
Age, mean (SD), y 56.93 (7.99) 57.16 (8.09) 56.73 (7.91)
Sex
Men 151 496 (46.01)
Women 177 741 (53.99)
BMI, mean (SD) 27.38 (4.71) 27.83 (4.22) 27.00 (5.07)
Smoking status
Never 178 969 (54.36) 73 775 (48.70) 105 194 (59.18)
Previous 116 116 (35.27) 59 424 (39.22) 56 692 (31.90)
Current 33 009 (10.03) 17 765 (11.73) 15 244 (8.58)
Prefer not to answer 1143 (0.35) 532 (0.35) 611 (0.34)
Alcohol intake frequency
Never 21 463 (6.52) 7326 (4.84) 14 137 (7.95)
Special occasion only 34 888 (10.60) 9943 (6.56) 24 945 (14.03)
1-3 times/mo 36 402 (11.06) 13 185 (8.70) 23 217 (13.06)
1-2 times/wk 86 741 (26.35) 39 735 (26.23) 47 006 (26.45)
3-4 times/wk 79 339 (24.10) 41 075 (27.11) 38 264 (21.53)
Daily or almost daily 70 188 (21.32) 40 126 (26.49) 30 062 (16.91)
Prefer not to answer 216 (0.07) 106 (0.07) 110 (0.06)
Systolic BP, mean (SD), mm Hg 138.24 (18.59) 141.32 (17.38) 135.62 (19.17)
Aortic valve stenosis 1491 (0.45) 988 (0.65) 503 (0.28)
Aortic valve regurgitation 634 (0.19) 411 (0.27) 223 (0.13)
Mitral valve regurgitation 1736 (0.53) 1039 (0.69) 697 (0.39)

Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); BP, blood pressure.