The program was designed to be initiated before 28 weeks gestation and continue to the child’s first birthday. The frequency of the home visits varied based upon the program phase. During pregnancy, participants were visited weekly the first month of the program, followed by biweekly visits until the child’s birth for a total of eight prenatal visits. After the child’s birth, home visits occurred weekly during the first three months of the child’s life and biweekly for the next three months, for a total of 18 visits. Between six months and one year, biweekly visits continued for the remainder of the program for a total of 12 visits. Each visit was about an hour in length.