Data were entered with Epi Info software (Dean et al., 1994), and analyses performed with SPSS, version 19 (SPSS, 2010). For maternal drinking during pregnancy by diagnostic group, categorical variables were analyzed by chi square and continuous variables by one way analysis of variance, shown to be robust to differing frequency distributions (Tabachnick and Fidell, 2013). Alpha levels for statistical significance for these analyses are adjusted with Bonferroni corrections as noted in the tables. ANOVAs that were statistically significant by the Bonferroni criterion were followed by pairwise comparisons of groups using an additional Dunnett’s correction, which corrects for the post hoc multiple testing of all combinations of two groups. Bonferroni corrections were used for all bivariate and partial correlations. Binary logistic regression analyses were performed to specifically compare odds of having a child with FASD for mothers who drank during different trimesters.
