Experimental group mothers reported significantly greater self-confidence and satisfaction with mothering and more favorable perception of infant temperament than did control group mothers. Differences between children on cognitive scores became significant at 36 and 48 months of age, when the experimental group caught up with normal children. (RH)

Regression analysis and principal components analysis, which can be used to create perinatal risk profiles of neighborhoods within cities, were compared. Using census tract level low birthweight as the outcome variable, both methods identified factors identifying neighborhoods at risk. Both methods can be used to identify community characteristics…