Role of Parenting Status in the Relationship Between Maternal Depression and Infant–Mother Attachment: A Longitudinal Cohort Study in China

This study in China aimed to explore the impact of maternal depression on infant-mother attachment and whether parenting status moderated this relationship. Women underwent depression assessments at seven perinatal time points: ≤12, 17, 21, 31, and 37 weeks of pregnancy, as well as 1 and 6 weeks postpartum. Those completing at least three times assessments, along with their infants, were invited for infant-mother attachment assessment at 12-18 months postpartum. Among 233 infant-mother pairs completing the infant-mother attachment assessment, 62 and 80 mothers had postnatal depression and perinatal major depression, respectively; 75 (32.2%) of infants exhibited insecure attachment. While infants whose mothers had maternal depression showed a slightly elevated rate of insecure attachment, this difference did not achieve statistical significance. Additionally, parenting status did not influence the relationship between maternal depression and infant-mother attachment. Nevertheless, the study hinted that more physical contact between mother and infant might reduce insecure attachment likelihood. Future research should expand sample sizes and assessment points for better understanding. In addition, encouraging close interaction and physical touch between mother and infant may be beneficial.