Analyses comparing consenters (n = 112) and non-consenters (n = 64) on the baseline variables listed in Table 1 revealed that the two groups did not differ on several baseline characteristics, such as age, ethnicity, years of education, alcohol diagnosis, smoking status, and DrInC-II scores (ps = ns). Non-consenters were more likely to be male [47.1 vs. 21.6%; χ2(1) = 11.99, p < .0001], had a higher average drinks per day [t (173) = 2.46, p < .05], and higher drinks per drinking day [t (173) = 2.44, p < .05].
