and 5.3, respectively; p<0.01); additional analyses indicate that the male portion of the sample drove this difference. Thus, it is possible that some of our results are attributable to a slightly more severe level of alcohol dependence. We also note that, because the controls used for the AD+/MD− analysis are the same as those used in the primary analysis, these results should not be considered unbiased, as a portion of the overlap between results could be attributable to idiosyncrasies of the control sample.
