analyses it also differentiates between each of the diagnostic groups and unexposed controls, FAS and exposed controls, and between exposed and unexposed controls. Finally, bingeing at both 3 drinks (χ2 = 117.22, p <.001) and 5 drinks (χ2 = 69.92, p <.001) per occasion during pregnancy were significantly different across groups. Therefore, most measures of quantity and frequency of alcohol use are useful in to discriminating between FASD diagnostic groups and controls. Drinks per week and DDD are robust measures of combined quantity/frequency.
