First-Time Parents' Bonding with Their Baby: A Longitudinal Study on Finnish Parents during the First Eight Months of Parenthood

Early positive bonding between parents and babies promotes the development of parenting skills and parents' sensitivity to their infant's needs. Positive bonding has been suggested to decrease the risk of maltreatment. There is less research into the differences between primiparae's and their spouses' bonding with their baby and changes in the parent-to-infant bonding during the first year of the baby's life. The aim of this study was to describe bonding with one's baby and related differences and changes within first-time parents. The data were collected from nine maternal health clinics in 2019-2021 in one city in Finland. The Mother-to-Infant Bonding Scale (MIBS) and the Edinburgh Postnatal Depression Scale (EPDS) were used. The data were collected during pregnancy (T1) and when the baby was aged 1-2 months (T2) and 6-8 months (T3). The questionnaire was completed separately by the primiparae (n = 81 at T1) and their spouses (n = 79 at T1). The findings demonstrated that both parents had positive feelings for their baby. The primiparae's and their spouses' MIBS scores were relatively low at T2 and T3. The change between time points or the difference in the parents' bonding was not statistically significant when examining MIBS total scores. The present study identified a positive weak-to-moderate correlation between the MIBS and EPDS. This association was highlighted in the group of primiparae. The results of this study can be used to develop maternity and child health clinic services, and to promote parents' equal growth in parenthood.

Effects of Varied Omega-3 Fatty Acid Supplementation on Postpartum Mental Health and the Association between Prenatal Erythrocyte Omega-3 Fatty Acid Levels and Postpartum Mental Health

We investigated the postpartum mental health of women who had consumed perilla oil or fish oil containing various omega-3 fatty acids for 12 weeks starting in mid-pregnancy. The association between fatty acids in maternal erythrocytes and mental health risk factors was also examined. Healthy Japanese primiparas in mid-pregnancy (gestational weeks 18-25) were randomly divided into two groups and consumed approximately 2.0 g/day of omega-3 fatty acids in either perilla oil (the ALA dose was 2.4 g/day) or fish oil (the EPA + DHA dose was 1.7 g/day) for 12 weeks. Maternal mental health was assessed using the Edinburgh Postnatal Depression Scale (EPDS) as the primary measure and the Mother-to-Infant Bonding Scale (MIBS) as the secondary measure. Data from an observational study were used as a historical control. Maternal blood, cord blood, and colostrum samples were collected for fatty acid composition analysis. In addition, completers of the observational studies were enrolled in a case-control study, wherein logistic regression analysis was performed to examine the association between maternal fatty acids and EPDS score. The proportion of participants with a high EPDS score (≥9) was significantly lower in the perilla oil group (12.0%, p = 0.044) but not in the fish oil group (22.3%, p = 0.882) compared with the historical control (21.6%), while the proportions between the former groups also tended to be lower (p = 0.059). No marked effect of omega-3 fatty acid intake was observed from the MIBS results. In the case-control study of the historical control, high levels of α-linolenic acid in maternal erythrocytes were associated with an EPDS score of <9 (odds ratio of 0.23, 95% confidence interval: 0.06, 0.84, p = 0.018 for trend). The results of this study suggest that consumption of α-linolenic acid during pregnancy may stabilize postpartum mental health.

Effects of maternal depressive symptomatology during pregnancy and the postpartum period on infant-mother attachment

AIM

Postnatal depression has demonstrated long-term consequences on child cognitive and emotional development; however, the link between maternal and child pathology has not been clearly identified. We conducted a prospective study using self-rating questionnaires to clarify the association between bonding disorder and maternal mood during pregnancy and after childbirth.

METHODS

A total of 389 women participated in this study and completed questionnaires. Participants were asked to complete the Edinburgh Postnatal Depression Scale (EPDS) and the Mother-to-Infant Bonding Scale four times during pregnancy and the postpartum period.

RESULTS

We found statistically significant weak to moderate correlations (r = 0.14-0.39) between the EPDS and Mother-to-Infant Bonding Scale scores at each testing period. Women who experienced low mood tended to have stronger bonding disorder. Furthermore, the effectiveness of attachment between the mother and child was closely related to the mood of the mother as measured by the EPDS.

CONCLUSION

We observed different patterns of bonding and maternal mood. Distinct subtypes regarding maternal mood and formation of mother-to-infant attachment suggests that analysis of bonding disorder should be performed considering the course of maternal depressive symptoms.