Table 1 Demographic information of study subjects. Data are expressed as mean +/- s.e.m.

N

28

11

40

Age Years (SD)

16.24 (0.34)

15.88 (0.33)

0.545

16.9 (0.38)

Gender (female/male)

20/8

7/4

0.635

26/14

BMI (kg/m²)

21.17 (0.61)

21.3 (1.08)

0.906

21.05 (0.66)

Smoking (yes/no)

17/11

7/4

0.866^a

17/23

Alcohol use (rarely/regularly)

15/13

6/5

0.956^a

23/17

Marijuana use (yes/no)

3/25

3/8

0.197^a

6/34

 Antidepresant (yes/no)

9/19

4/7

0.801^a

14/26

 Benzodiazepine (yes/no)

1/27

2/9

0.123^a

7/33