Table 2 Demographic variables and descriptive statistics for the placebo and alcohol groups.

From: Acute alcohol administration dampens central extended amygdala reactivity

  Total Placebo Alcohol Difference
Sample size 49 22 27 N/A
Mean Age in Years (SD) 22.4 (2.5) 22.1 (1.4) 22.6 (3.1) t(47) = 0.69, p = 0.50
Gender: Female/Male 23/26 11/11 12/15 χ2 = 0.15, p = 0.8
Mean BALa (SD) N/A 0.00 (0.00) 0.09 (0.02) t(47) = 27.20, p < 0.001
Mean Subjective Estimate of Number of Drinks Consumed During the Study (SD) N/A 2.07 (1.09)b 4.56 (1.25)c t(47) = 7.32, p < 0.001
Mean Motion, Frame-to-Frame Displacement (SD) 0.13 (0.03) 0.12 (0.03) 0.13 (0.03) t(47) = 1.01, p = 0.32
  1. aPre-MRI and post-MRI BAL were strongly correlated, r(47) = 0.96, p < 0.001. bWithin-group difference from zero, t(21) = 8.87, p < 0.001. cWithin-group difference from zero, t(26) = 18.93, p < 0.001.