Table 1.

Baseline characteristics

Variable	Mean ± SD [range] or (percentage)
Age	45 ± 11 [12–84]
Sex
Male	22.2%
Female	77.8%
Ethnicity	42,806
Caucasian	90.4%
Afro-Caribbean	2.3%
African	1.4%
Asian	3.2%
Other	2.7%
Weight, kg	121.7 ± 43.5 [46.0–213.8]
Height, m	1.66 ± .09 [1.35–1.96]
BMI, kg/m2	47.8 ± 8.0 [25.0–73.7]

SD = standard deviation; BMI = body mass index.