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Published on: June 13, 2021
Antenatal risk factors for postnatal depression: a large prospective study
Jeannette Milgrom1, Alan W Gemmill, Justin L Bilszta
1Department of Psychology, School of Behavioural Science, University of Melbourne, Victoria, Australia. jeannette.milgrom@austin.org.au
Antenatal depression, previous depression, and low partner support are key predictors of postnatal depression. Early intervention targeting these factors can improve maternal mental health.
Area of Science:
- Perinatal mental health research
- Psychiatry
- Public health
Background:
- Investigated antenatal risk factors for postnatal depression in Australia.
- Utilized data from the beyondblue National Postnatal Depression Program (2002-2005).
Purpose of the Study:
- To identify and analyze antenatal risk factors for postnatal depression.
- To understand the combined and individual effects of these risk factors.
Main Methods:
- Screened pregnant women using the Edinburgh Postnatal Depression Scale (EPDS) and a psychosocial risk factor questionnaire.
- Collected antenatal data from over 35,000 women and postnatal data from over 12,000 women.
Main Results:
- 8.9% of women screened positive for antenatal depression (EPDS >12).
- 7.5% of women screened positive for postnatal depression (EPDS >12).
- Antenatal depression, prior depression history, and low partner support were significant predictors of postnatal depression.
Conclusions:
- Antenatal depressive symptoms are as prevalent as postnatal symptoms.
- Key modifiable risk factors include current depression/anxiety and social support.
- Targeting these factors offers potential for intervention to prevent postnatal depression.
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