sex
1 = male
2 = female

classification by age
1 = 19-34
2 = 35-54
3 = 55-64

1 = no
2 = yes

Nutritional supplement used in the last month
1 = no
2 = yes
3 = don't know

1 = inactive
2 = minimalactive
3 = active

WC_classification_cutoff
1 = Low
2 = High

BMI_classification
1 = 25-29.9
2 = 30-34.9
3 = >35

1 = yes
2 = no