Mother-child cohesion, friendship quality, and depressive symptoms in children: Direct and indirect associations between developmental trajectories

Mother-child cohesion and friendship quality have been shown to be protective factors against the development of children's depressive symptoms. However, the possible direct and indirect pathways from these two important interpersonal relationships to children's depressive symptoms need to be further elucidated. Moreover, these associations have not been examined from a developmental perspective. Therefore, this study examined the direct and indirect relations among developmental trajectories of mother-child cohesion, friendship quality, and depressive symptoms in children. A total of 4078 Chinese children (45.2 % girls, Mage = 9.90 years, SD = 0.73) participated in assessments at five time points across 2.5 years, employing six-month intervals. Latent growth curve modeling was conducted to examine the direct and indirect relations among the developmental trajectories of mother-child cohesion, friendship quality, and depressive symptoms. The developmental trajectories of both mother-child cohesion and friendship quality were negatively and directly associated with the developmental trajectory of children's depressive symptoms. The developmental trajectory of friendship quality was indirectly associated with the developmental trajectory of depressive symptoms through the mediating role of mother-child cohesion. This study did not investigate father-child cohesion and other important psychological mechanisms linking interpersonal relationships to depressive symptoms. The findings documented the direct and indirect relations among mother-child cohesion, friendship quality, and depressive symptoms from a developmental perspective, which suggested that prevention and intervention efforts target improving mother-child cohesion and friendship quality to reduce children's depressive symptoms.