Table 1 Volunteer demographics.

Stage AStage B
Group
A1
Group
A2
Group
A3
Total
Number of
volunteers
33134867
Age
(years)
Mean2325232323
SD33534
Median2326232323
Min, max20, 2620, 2918, 3418, 3318, 34
SexMale1252634
Female2182233
BMIMean25.323.923.623.323.5
SD0.72.72.93.13.0
Median25.124.923.622.523.4
Min, max25, 2618, 2619, 2918, 3018, 30