The antecedents and consequences of adolescent pregnancy attracted a great deal of research attention during the 1970's. National statistics show the number of births to adolescent mothers has been declining. To analyze trends in the incidence of births to adolescents in Maine between 1971 and 1980 and to provide a profile of the health and demographic characteristics of this population, computerized records of births to Maine mothers under 20 years of age were analyzed. Results showed births to teenage mothers as a percentage of total births declined from 17.1% in 1971 to 14.9% in 1980. The proportion of out-of-wedlock births to teenage mothers rose from 21.9% in 1971 to 41.8% in 1980. There was a trend toward better prenatal care, and the great majority of the infants were healthy. About two-thirds of the women were 18 and 19 year olds, while 4% were 15 or younger. Results also showed that 53% of the fathers were over 21 years old. Data indicate that trends in adolescent childbearing in Maine are not substantially different from the rest of the nation, and that progress has been made in dealing with the problems of teenage mothers. (JAC)