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J Affect Disord. 2011 Oct;133(3):607-10. doi: 10.1016/j.jad.2011.04.024. Epub 2011 May 20.

Age-specific 3-month cumulative incidence of postpartum depression: the Hamamatsu Birth Cohort (HBC) Study.

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1
Research Center for Child Mental Development, Hamamatsu University School of Medicine, Hamamatsu, Japan.

Abstract

BACKGROUND:

The prevalence of postpartum depression (PPD) in the general population has been reported to be 10% to 15% worldwide. However, the relevance of age of the parturients to the emergence of PPD has not been well documented. To address this, we estimated the age-specific 3-month cumulative incidence of PPD using the Hamamatsu Birth Cohort for Mothers and Children (HBC).

METHODS:

Women with PPD were defined as those scoring 9 points or higher using the Edinburgh Postnatal Depression Scale 3 months after childbirth.

RESULTS:

Among 675 participating parturients, 100 women were found to have PPD; the cumulative incidence of PPD over the 3 months after childbirth was 14.8%. The age-specific estimates were 20.8% for <25 years, 14.2% for 25 to 29 years, 11.5% for 30 to 34 years, and 17.9% for ≥ 35 years. In the logistic regression analysis, the increased OR for having PPD among parturients aged ≥ 35 years was 1.7, which remained significant after controlling for age of partner, parity, and household income.

LIMITATIONS:

Although the sample was representative, the sample size was modest.

CONCLUSION:

The cumulative incidence of PPD was significantly different across age groups, with the highest estimates in the advanced age band. The heightened estimate was not accounted for by the age of the partner, parity, or annual household income.

PMID:
21601291
DOI:
10.1016/j.jad.2011.04.024
[Indexed for MEDLINE]
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