Figure 1.
Mental Development Index scores at 24 months distributed by fetal heart rate/variability categories, F(3, 72) = 4.62, p < .01. Tukey HSD post hoc contrasts indicated significant differences between the slow and variable group and the slow and stable and fast and stable groups, ps < .05. The ns per group = 22, 20, 15, and 19, respectively, based on order of presentation.