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. 2019 Jun 5;236(8):2413–2423. doi: 10.1007/s00213-019-05276-2

Table 1.

Participant demographics and current and lifetime drug use (N = 73)

N (% of total)
Total sample Men Women
Gender 3 (44 M/29 W) 44 (60%) 29 (40%)
Race
  Caucasian 44 (60%) 23 (52%) 21 (72%)
  African American 11 (15%) 8 (18%) 3 (10%)
  Asian 11 (15%) 8 (18%) 3 (10%)
  Other 7 (10%) 5 (11%) 2 (7%)
Mean (± SD)
Age (years) 24.8 (3.48) 25.4 (3.86) 23.7 (2.52)
Education (years) 15.7 (1.70) 15.6 (1.70) 15.8 (1.72)
BMI 22.6 (1.86) 22.9 (1.78) 22.1 (1.93)
Body weight 70.90 (9.14) 74.9 (7.98) 64.7 (7.24)
Current drug use Mean (± SD)
  Caffeine/day 2.01 (3.66) 2.28 (4.76) 1.60 (0.66)
  Cigarettes/day 3.64 (5.33) 4.07 (6.13) 2.57 (2.89)
  Drinks/week 7.04 (5.30) 6.97 (5.46) 7.14 (5.16)
  Marijuana/month 9.56 (13.5) 11.9 (15.0) 2.50 (1.29)
Lifetime drug use Ever used (% of total)
  Marijuana 55 (75%) 31 (70%) 25 (86%)
  Opiates 29 (40%) 15 (34%) 14 (48%)
  Stimulants 23 (32%) 14 (32%) 9 (31%)
  Hallucinogens 20 (27%) 14 (32%) 6 (21%)
  MDMA 15 (21%) 8 (18%) 7 (24%)

Current drug use includes values only for those who regularly use; cigarettes per day for those who have used in the past month (N = 14; 10 M, 4 W); marijuana per month for those who have used in the past month (N = 16; 12 M, 4 W)