Perinatal risk factors and reactive attachment disorder: A nationwide population‐based study

Aim To examine the association between several perinatal and obstetric risk factors and reactive attachment disorder in children diagnosed in specialised services. Methods In this nested case‐control study, 614 cases with reactive attachment disorder and 2423 controls matched with age and sex were identified from Finnish national registers. Conditional logistic regression was used to examine the association between a number of perinatal risk factors and reactive attachment disorder. Results In the adjusted analysis, a low birthweight of