Prevalence of postpartum depressive symptoms during the first 6 months postpartum: Association with maternal age and parity

Iwata, Hiroyasu; Mori, Etsuro; Sakajo, Akiko; Aoki, Kyoko; Maehara, Kunie; Koji, Takehiko

doi:10.1016/j.jad.2016.06.002

Cited by 70 publications

(47 citation statements)

References 17 publications

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“…In this study, the prevalence of postpartum depression at 6 months was 11.6% and the prevalence of serious mental illness at 1 year was 2.6%, which are lower than the rates determined in the prenatal period and at 1 month after delivery in our previous study (13.8% at 1 month after delivery for depression; 3.4% in the first trimester; and 3.1% in the second/third trimester for serious mental illness (Hamazaki et al ., 2018)). These decreases over time are in line with a previous report on primiparas in Japan (Iwata et al ., 2016). Notably, when using the lowest threshold (the lowest decile as a reference) for n-3 PUFA intake, risk was lower than when using the same threshold for fish intake.…”

Section: Discussionmentioning

confidence: 99%

“…The prevalence of postpartum depression peaks at about 1 month (Ishikawa et al ., 2011; Shimizu et al ., 2015; Iwata et al ., 2016), but its symptoms become fixed and intractable at about 6 months (Denckla et al ., 2018). Despite conventional thinking that 6 months is outside the standard postpartum depression period (American Psychiatric Association, 2013), many experts believe that the postpartum depression period should be extended to as long as 12 months (Gaynes et al ., 2005).…”

Section: Introductionmentioning

confidence: 99%

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Dietary intake of fish and n-3 polyunsaturated fatty acids and risk of postpartum depression: a nationwide longitudinal study – the Japan Environment and Children's Study (JECS)

et al. 2019

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BackgroundPregnant women require increased levels of n-3 polyunsaturated fatty acids (PUFAs) due to the demands of the growing fetus. Although some evidence indicates that maternal intake of fish and n-3 PUFAs is associated with reduced risk of postpartum depression, the results are inconsistent.MethodsWe investigated whether dietary consumption of fish and/or n-3 PUFAs during pregnancy is associated with a reduced risk of maternal postpartum depression at 6 months after delivery and of serious mental illness at 1 year in a Japanese population. After exclusion and multiple imputation from a dataset comprising 103 062 pregnancies obtained in the Japan Environment and Children's Study, we evaluated 84 181 and 81 924 women at 6 months and 1 year after delivery, respectively.ResultsMultivariable logistic regression showed a reduced risk of postpartum depression at 6 months in the second to fifth quintiles v. the lowest quintile for fish and n-3 PUFA intake, with trend tests also revealing a significant linear association. At 1 year after delivery, fish intake was associated with a reduced risk of serious mental illness in the second to fifth quintiles v. the lowest quintile for fish and in the third to fifth quintiles v. the lowest quintile for n-3 PUFA intake, with trend tests also revealing a significant linear association.ConclusionsWomen with higher fish and/or n-3 PUFA intake showed reduced risk of postpartum depression at 6 months after delivery and of serious mental illness at 1 year after delivery.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dietary intake of fish and n-3 polyunsaturated fatty acids and risk of postpartum depression: a nationwide longitudinal study – the Japan Environment and Children's Study (JECS)

et al. 2019

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“…Previous studies have suggested that perinatal depression is more frequent and serious in primiparous women than multiparous women [75, 76]. It was interesting to investigate trend of vitamin D effectiveness in the two primiparous and multiparous subgroups.…”

Section: Discussionmentioning

confidence: 99%

A randomized controlled trial of vitamin D supplementation on perinatal depression: in Iranian pregnant mothers

Vaziri

Nasiri

Tavana

et al. 2016

BMC Pregnancy Childbirth

101

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BackgroundMood disorders in pregnancy and post-partum period are common and considered as a public health issue. Researchers have studied the relationship between low serum vitamin D concentration and perinatal depression, although no clinical trial has been conducted on vitamin D’s effects on depression related to childbirth. This study evaluated the effect of vitamin D3 supplementation on perinatal depression scores.MethodsThis randomized clinical trial was done in pregnant women who were under prenatal care in a teaching hospital in Shiraz, Iran. The inclusion criteria were: being 18 years or older, no history of mental illness and internal diseases, a singleton live fetus, without any pregnancy complications, gestational age of 26–28 weeks upon enrollment, and depression score of 0 to 13. The Edinburgh Postnatal Depression scale was used to evaluate depression scores. A total of 169 participants were assigned to the two groups of placebo and vitamin D through block randomization design. Vitamin D group received 2000 IU vitamin D3 daily from 26 to 28 weeks of gestation until childbirth. Maternal serum 25-hydroxyvitamin D concentrations were measured at baseline and childbirth. Besides, depression scores were evaluated four times: at 26–28 and 38–40 weeks of gestation, and finally at 4 and 8 weeks after birth.ResultsThe two groups were similar in relation to baseline 25-hydroxyvitamin D concentrations. However, at childbirth, the vitamin D group had significantly higher 25-hydroxyvitamin D concentration in comparison to the control group (p < 0.001). At baseline, no correlation was observed between 25-hydroxyvitamin D concentration and depression score (r = 0.13, p = 0.09). There was no significant difference between the two study groups in relation to the baseline depression score. While, the vitamin D group had greater reduction in depression scores than the control group at 38–40 weeks of gestation (p = 0.01) also, at 4 and 8 weeks after birth (p < 0.001).ConclusionsThe present trial showed that consuming 2000 IU vitamin D3 daily during late pregnancy was effective in decreasing perinatal depression levels. We suggest further clinical trial in pregnant mothers who are at risk for postnatal depression.Trial registrationIranian Registry of Clinical Trials IRCT2015020310327N11. Date of registration: March 9th 2015.Electronic supplementary materialThe online version of this article (doi:10.1186/s12884-016-1024-7) contains supplementary material, which is available to authorized users.

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“…A cross‐sectional and time‐series descriptive design was used. Data were derived from a large multicenter prospective cohort study (N = 2778) conducted in Japan to explore physical and psychosocial well‐being of mothers of healthy infants during the first 6 months postpartum (Iwata et al, ). In the present study, we examined data collected at birth and at 1, 2, 4, and 6 months postpartum among only the primiparous women (n = 1120) in the sample.…”

Section: Methodsmentioning

confidence: 99%

Postpartum maternal function and parenting stress: Comparison by feeding methods

Maehara

Mori

Iwata

et al. 2017

Int J of Nursing Practice

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Prevalence of postpartum depressive symptoms during the first 6 months postpartum: Association with maternal age and parity

Cited by 70 publications

References 17 publications

Dietary intake of fish and n-3 polyunsaturated fatty acids and risk of postpartum depression: a nationwide longitudinal study – the Japan Environment and Children's Study (JECS)

Dietary intake of fish and n-3 polyunsaturated fatty acids and risk of postpartum depression: a nationwide longitudinal study – the Japan Environment and Children's Study (JECS)

A randomized controlled trial of vitamin D supplementation on perinatal depression: in Iranian pregnant mothers

Postpartum maternal function and parenting stress: Comparison by feeding methods

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