Teenage parenthood among child welfare clients: a Swedish national cohort study of prevalence and odds.

To assess prevalence and odds for teenage parenthood among former child welfare clients, we used national register data for all children born in Sweden 1972-1983 (n=1,178,207), including 49,582 former child welfare clients with varying intervention experiences. Logistic regression models, adjusted for demographic, socio-economic and familial background factors, were used to estimate odds ratios. Among youth who received interventions in adolescence, 16-19% of the girls and 5-6% of the boys became teenage parents, compared to 3% for girls and 0.7% for boys without child welfare experiences. Youths who entered child welfare services in their teens had four- to fivefold adjusted odds for becoming a teenage parent. For other child welfare clients, adjusted odds were mostly twofold. Youth of both sexes who receive child welfare services in adolescence are a high-risk group for teenage parenthood. Child welfare agencies should, as a minimum, provide each individual client youth with access to birth control counselling and contraceptives.