Table 1. Baseline characteristics of the UKBB participants included in this study.

	Mean (SD) or n (%)†
Sample size	367,561 (100)
Male	168,736 (45.9)
Age at baseline (years)	57.2 (8.1)
Body composition
BMI (kg/m2)	27.4 (4.8)
FMI (kg/m2)	8.8 (3.6)
FFMI (kg/m2)	18.6 (2.6)
Height (m)	1.69 (0.07)
Blood pressure (mm Hg)
Systolic blood pressure	137.6 (18.6)
Diastolic blood pressure	82.0 (10.1)
Smoking status
Current	37,866 (10.3)
Ex	185,704 (50.5)
Never	143,777 (39.1)
Alcohol status
Current	342,797 (93.2)
Ex	12,732 (3.5)
Never	11,646 (3.2)
Type 2 diabetes	15,834 (4.3)

^† Mean (standard deviation) for continuous variables; n (%) for categorical variables.

A total of 214 participants had missing data on smoking status, and 386 participants had missing data on alcohol status.

BMI, body mass index; FFMI, fat-free mass index; FMI, fat mass index; SD, standard deviation; UKBB, UK Biobank.