<qa>  How many infants were enrolled in Phase I?The second phase of the study compared 1,400 exposed and nonexposed infants with respect to long-term neurodevelopmental outcomes. These infants were among the 16,000 infants enrolled in Phase I. It was estimated that 70 of the screened population would consent to participate in Phase II of the study, and 50 of these participants would complete all visits over the initial 3-year study period 2,000 exposed infants enrolled into Phase II and 1,000 exposed infants would complete all follow-up visits. For each exposed infant, an infant of similar age, race, sex, and either alcohol history or maternal age was selected from the nonexposed, screened population. All infants had physical, neurological, gestational age, and growth assessments at birth. The exposed and nonexposed infants were examined at 1, 4, 7, 9, 12, 18, 24, and 36 months corrected age. Follow-up assessments include medical history, and developmental, behavioral, social, and environmental outcomes. 