is about mentions body mass index (BMI) data item species Body Fat Percentage Time since quitting smoking waist:hip ratio subject of a nutritional study subject information collection data A class which groups the data item collected as results from the subject information collection assay ENPADASI_WP4 age phenotypic sex study group country ethnicity physical activity smoking behavior alcohol drinking body weight obsolete body height obsolete waist circumfrence obsolete hip circumference cigarettes per day measurement