Figure 2.

The least means squares with Bonferroni adjustment in linear mixed models, adjusted for child race/ethnicity and maternal education, are plotted for: (A) knowledge; (B) attitudes; (C) self-efficacy; and (D) beliefs. In the intervention group, each subscale score improved from pre-intervention (time 1) to postintervention (time 2), but not from postintervention (time 2) to follow-up (time 3) or preintervention (time 1) to follow-up (time 3) (significant P values are shown). No significant improvement in scores occurred for the control group. In the overall linear mixed models, adjusted for child race/ethnicity and maternal education, a significant time × treatment interaction emerged for self-efficacy (P = 0.02), attitudes (P = 0.001), and knowledge (P = 0.02), but not for beliefs (P = 0.20).