SEARCHCOHORTepidemiology, obstetrics and gynecology

cohort·epidemiology, obstetrics and gynecology, psychiatry, public health, nutrition·PMC10163226

Weight-loss behaviors before pregnancy associate with increased risk of postpartum depression from the Japan Environment and Children’s Study

Scientific Reports · 3 authors, 2 centres

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TL;DR

This large prospective cohort study from Japan found that using any weight-loss behavior before pregnancy was associated with a significantly increased risk of postpartum depression (PPD) in women who did not have psychological distress during pregnancy. The association varied by type of weight-loss method and pre-pregnancy BMI category.

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PPD was assessed using the EPDS at 1 month postpartum. Furthermore, the association differed by pre-pregnancy BMI: in underweight women (BMI<18.5), only certain methods were linked to PPD; in normal-weight women, all methods were linked; and in overweight/obese women (BMI≥25), only smoking was significantly associated. Findings suggest pre-pregnancy weight-loss behaviors are a risk factor for PPD, particularly in women of normal weight.

STUDY TYPE

cohort

SPECIALTY

epidemiology

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ORIGINAL PAPER

PMC10163226

Weight-loss behaviors before pregnancy associate with increased risk of postpartum depression from the Japan Environment and Children’s Study

Scientific Reports

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ABSTRACT

Abstract No studies showed the association between weight-loss behaviors before pregnancy and postpartum depression (PPD). We analyzed data from the nation-wide birth cohort study, the Japan Environment and Children’s Study. Self-administrated questionnaires answered by 62,446 women was analyzed using logistic regression analysis. PPD was assessed using the Edinburgh Postnatal Depression Scale at 1 month after delivery. Women using at least one weight-loss method had higher risk of PPD than women using no weight-loss methods [women without antenatal psychological distress according to Kessler 6-Item Psychological Distress score: adjusted odds ratio (aOR) 1.318, 95% confidence interval (CI) 1.246–1.394; women with antenatal psychological distress: aOR 1.250, 95% CI 0.999–1.565]. Using extremely unhealthy weight-loss methods was associated with PPD compared with no use of each weight-loss method (vomiting after eating: aOR 1.743, 95% CI 1.465–2.065; smoking: aOR 1.432, 95% CI 1.287–1.591; taking diet pills: aOR 1.308, 95% CI 1.122–1.520). The association between weight-loss behaviors and PPD varied according to pre-pregnancy BMI. In normal-weight women, the weight-loss method score, which indicates the degree of weight-loss method use, was associated with PPD. These results indicate using weight-loss methods before pregnancy is associated with an increased risk of PPD in Japanese women. Subject terms: Epidemiology, Weight management, Risk factors

CITATION EXPORT

Saki Taniguchi, Toshio Masumoto, Youichi Kurozawa. Weight-loss behaviors before pregnancy associate with increased risk of postpartum depression from the Japan Environment and Children’s Study. Scientific Reports. (2023). https://doi.org/10.1038/s41598-023-34547-4

AUTHORS

3 · 2 CENTRES

Saki Taniguchi, Toshio Masumoto, Youichi Kurozawa

1Tottori Regional Center of The Japan Environment and Children’s Study, Faculty of Medicine, Tottori University, Tottori, Japan
2Division of Health Administration and Promotion, Department of Social Medicine, Faculty of Medicine, Tottori University, Tottori, Japan