Changes in the association between postpartum depression and mother-infant bonding by parity: Longitudinal results from the Japan Environment and Children's Study

Akiko Tsuchida; Kei Hamazaki; Kenta Matsumura; Kayoko Miura; Haruka Kasamatsu; Hidekuni Inadera; Japan Environment and Children's Study (JECS) Group

doi:10.1016/j.jpsychires.2018.11.022

Changes in the association between postpartum depression and mother-infant bonding by parity: Longitudinal results from the Japan Environment and Children's Study

J Psychiatr Res. 2019 Mar:110:110-116. doi: 10.1016/j.jpsychires.2018.11.022. Epub 2018 Nov 28.

Authors

Akiko Tsuchida¹, Kei Hamazaki¹, Kenta Matsumura², Kayoko Miura², Haruka Kasamatsu², Hidekuni Inadera³; Japan Environment and Children's Study (JECS) Group

Collaborators

Japan Environment and Children's Study (JECS) Group:
Toshihiro Kawamoto⁴, Yukihiro Ohya⁵, Reiko Kishi⁶, Nobuo Yaegashi⁷, Koichi Hashimoto⁸, Chisato Mori⁹, Shuichi Ito¹⁰, Zentaro Yamagata¹¹, Hidekuni Inadera¹², Michihiro Kamijima¹³, Takeo Nakayama¹⁴, Hiroyasu Iso¹⁵, Masayuki Shima¹⁶, Yasuaki Hirooka¹⁷, Narufumi Suganuma¹⁸, Koichi Kusuhara¹⁹, Takahiko Katoh²⁰

Affiliations

¹ Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan; Toyama Regional Center for JECS, University of Toyama, Toyama, Japan.
² Toyama Regional Center for JECS, University of Toyama, Toyama, Japan.
³ Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan; Toyama Regional Center for JECS, University of Toyama, Toyama, Japan. Electronic address: inadera@med.u-toyama.ac.jp.
⁴ National Institute for Environmental Studies, Tsukuba, Japan.
⁵ National Center for Child Health and Development, Tokyo, Japan.
⁶ Hokkaido University, Sapporo, Japan.
⁷ Tohoku University, Sendai, Japan.
⁸ Fukushima Medical University, Fukushima, Japan.
⁹ Chiba University, Chiba, Japan.
¹⁰ Yokohama City University, Yokohama, Japan.
¹¹ University of Yamanashi, Chuo, Japan.
¹² University of Toyama, Toyama, Japan.
¹³ Nagoya City University, Nagoya, Japan.
¹⁴ Kyoto University, Kyoto, Japan.
¹⁵ Osaka University, Suita, Japan.
¹⁶ Hyogo College of Medicine, Nishinomiya, Japan.
¹⁷ Tottori University, Yonago, Japan.
¹⁸ Kochi University, Nankoku, Japan.
¹⁹ University of Occupational and Environmental Health, Kitakyushu, Japan.
²⁰ Kumamoto University, Kumamoto, Japan.

PMID: 30616158
DOI: 10.1016/j.jpsychires.2018.11.022

Abstract

The results of several epidemiological studies have shown a moderate association between postpartum depression (PPD) and mother-infant bonding (MIB); however, associations and changes that longitudinally considered parity were not reported. We investigated the possible association between PPD and MIB at one month after birth, in addition, the changes of these indices by parity. From a dataset comprising 103,099 maternal registrations in The Japan Environment and Children's Study, the present study analyzed complete data on questionnaires for 76,363 women who participated once (cross-sectional group) and 3753 women who participated twice (follow-up subgroup). Edinburgh Postnatal Depression Scale (EPDS) scores and the Mother-to-Infant Bonding Scale-Japan (MIBS-J) scores were obtained one month after delivery. We identified the two factors of the MIBS-J, "lack of maternal feeling (LMF)" and "anxiety about caregiving (AC)" through confirmatory factor analysis. Associations between total EPDS and each factor of MIBS-J were evaluated using multiple regression analyses after adjusting for potential confounders. Total EPDS and both factors (LMF and AC) were positively related in the cross-sectional group (fully adjusted β = 0.26 and 0.39 for LMF and AC, respectively), in the follow-up subgroup at first participation (0.24 and 0.40, respectively) and at the second participation (0.25 and 0.39, respectively). Multiple regression analyses revealed a robust, moderate relationship between postpartum depression and mother-infant bonding. PPD and MIB scores were shown to decrease from the first child to the second in the follow-up subgroup. Consequently, interventions which would increase a mother's child care experience and expertise would prevent PPD and improve MIB.

Keywords: Birth cohort; Bonding; Maternal attachment; Parenting; Parity; Postpartum depression.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Cross-Sectional Studies
Depression, Postpartum / physiopathology*
Female
Humans
Infant
Japan
Longitudinal Studies
Male
Mother-Child Relations*
Object Attachment*
Parity*
Pregnancy