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. Author manuscript; available in PMC: 2012 Oct 15.
Published in final edited form as: Biol Psychiatry. 2011 Aug 5;70(8):763–769. doi: 10.1016/j.biopsych.2011.06.027

Table 1.

Demographics of the human fetal samples in cannabis-exposed and control groups. Maternal cannabis, cigarette and alcohol use are represented as average daily joint (ADJ), average daily cigarette (ADC), and average daily volume (ADV), respectively. This metric was calculated by converting weekly use into daily use based on the yearly pattern of use [e.g. seven joints per week equals an ADJ score of 0.90 (7 joints/week × 4 weeks/month)/(31 days/month)] (40). For alcohol use, 1 drink was equal to 12 oz. of beer, 4 oz. of wine, or 1.5 oz of liquor. Values are represented as mean ± SEM.

Control
(N = 25)
Cannabis-exposed
(N = 24)
p-value
Mother’s Age (years) 23.84 ± 1.2 22.25 ± 0.7 0.2724
Mother’s Education (years) 12.12 ± 0.4 11.87 ± 0.4 0.6712
Mother’s Race (White/Black/Hispanic) 2/21/2 0/19/5 -
Fetal Sex (male/female) 13/12 13/11 -
Fetal Age (gestation weeks) 20.36 ± 0.3 20.21 ± 0.3 0.6961
Postmortem Interval (hours) 9.58 ± 0.7 7.97 ± 0.7 0.1248
Maternal Cannabis Use (ADJ) 0 1.24 ± 0.2 <0.0001
Maternal Cigarette Use (ADC) 2.16 ± 0.8 4.04 ± 0.8 0.0983
Maternal Alcohol Use (ADV) 0.30 ± 0.1 0.30 ± 0.1 0.9899