TABLE 1.

Baseline characteristics

Cohort	Derivation	Validation	Smoker/vaper	p‐value
Sample size	n = 21	n = 20	n = 47
Age, years	24.7 ± 5.5	24.2 ± 3.0	23.5 ± 2.79	.78
Sex (M/F)	10/11	10/10	19/28	.72
BMI (kg/m2)	22.1 ± 3.29	22.6 ± 3.04	22.4 ± 2.74	.82
Highest level of education
Bachelors	18	14	43	.07
Postgraduate	3	6	4

Note Values are given as number or mean ± SD.

BMI indicates body mass index.