In addition to data presented in Table 1, results of a two-way, between-within ANOVA using only the four groups with exposed mothers confirms significant reduction of drinking across trimesters for all drinking groups. The only statistically significant effect was the within-subjects main effect for trimester (F (2, 410) = 31.72, p <.001), partial η2 = .14 with 95% confidence limits between .08 and .19.