Inattentiveness, parental smoking and adolescent smoking initiation

Aims  To examine how adolescents’ inattentive behaviour, together with parental smoking patterns, predicts smoking initiation by age 14. Design, settings  A prospective, longitudinal study: baseline at ages 11–12, follow-up at age 14. A population-based sample of Finnish twins, born 1983–1987, with parents and classroom teachers as additional informants. Two groups were formed, allocating the co-twins of each family into separate groups: the study sample and a replication sample. Participants  Twin individuals (n = 4552), aged 11–12 at baseline and 14 (average 14.04 years) at follow-up. Measurements  At baseline, inattentiveness was assessed with the Multidimensional Peer Nomination Invento…