The intertwined effect of lack of emotional warmth and child abuse and neglect on common mental disorders in adolescence.

Adolescence is a vulnerable period for mental health problems. Although child abuse and neglect (CAN) are known risk factors for some of them, it is not clear if the negative consequences on mental health also occur in families where CAN and a warm parent-child relationship coexist. The aim of this study is to explore this gap and investigate the effects of different types of CAN according to levels of warmth in the parent-child relationship on common mental disorders (CMD) in adolescence. This is a cross-sectional study encompassing 487 adolescents attending the ninth grade at 2 public and 4 private schools in Rio de Janeiro, Brazil. CAN was measured by the Child Trauma Questionnaire (CTQ), CMD by the General Health Questionnaire (GHQ-12) and the level of warmth in the parent-child relationship were recalled using short Egna Minnen Betraffände Uppfostran (s-EMBU-23). The adjusted separate effects of different types of CAN and a low level of warmth in the parent-child relationship, and both in tandem, were estimated using multivariate linear regression models. Results indicated that emotional abuse and neglect, physical abuse and neglect, and a low level of warmth in the parent-child relationship are important risk factors for CMD in adolescence. Nevertheless, in families where CAN coexist with a warm and affectionate parent-child relationship, the negative effects of CAN on mental health are attenuated. Evidence indicates that actions to prevent or interrupt CAN and improving parental practices could be effective strategies to reduce CMD in adolescence.