Does participation in preventive child health care at the general practitioner minimise social differences in the use of specialist care outside the hospital system?

Introduction: The primary purposes of preventive child health care in Denmark are to help ensure a healthy childhood and to create preconditions for a healthy adult life. The aim of this study is to examine whether participation in age-appropriate preventative child health care affects the association between the socioeconomic position of the family and subsequent use of specialised health care outside the hospital system. Methods: The study population was children born in 1999 and living in Denmark between 1 January 2002 and 31 December 2006 (n=68,366). The study investigated whether the number of contacts with a specialist in 2006 was related to participation in preventive child health care between 2002 and 2005. To control for the potential effect of difference in GP behaviour the data were analysed using a multilevel Poisson model linking each child to the GP with whom he or she was listed. Results: If the children attended any preventive child health care visits, they had the same probability of contact with a specialist regardless of the parents’ income. However, children from low-income families not participating in any preventive care had a lower probability of contact with a specialist than children from more affluent families. Conclusions: Ensuring participation in preventive child health care at the GP may reduce the social gap in utilisation of specialised health care that exists between children from families of different income levels.