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Open Access Research article

Relationship of postnatal depressive symptoms to infant temperament, maternal expectations, social support and other potential risk factors: findings from a large Australian cross-sectional study

John G Eastwood124*, Bin B Jalaludin1, Lynn A Kemp1, Hai N Phung1 and Bryane EW Barnett3

Author Affiliations

1 School of Public Health and Community Medicine, The University of New South Wales, Sydney, NSW, 2052, Australia

2 School of Women’s and Children’s Health, The University of New South Wales, Sydney, NSW, 2052, Australia

3 School of Psychiatry, The University of New South Wales, Sydney, NSW, 2052, Australia

4 Community Paediatrics, South Western Sydney Local Health Network, Hugh Jardine Building, Eastern Campus, Locked Mail Bag 7017, Liverpool, BC NSW, 1871, AUSTRALIA

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BMC Pregnancy and Childbirth 2012, 12:148  doi:10.1186/1471-2393-12-148

Published: 12 December 2012

Abstract

Background

From 2000 a routine survey of mothers with newborn infants was commenced in South Western Sydney. The survey included the Edinburgh Postnatal Depression Scale (EPDS). The aim of the study was to determine the prevalence and risk factors for postnatal depressive symptoms in women living in metropolitan Sydney, Australia.

Methods

Mothers (n=15,389) delivering in 2002 and 2003 were assessed at 2–3 weeks after delivery for risk factors for depressive symptoms. The binary outcome variables were EPDS >9 and >12. Logistic regression was used for the multivariate analysis.

Results

The prevalence of EPDS >9 was 16.93 per 100 (95% CI: 16.34 to 17.52) and EPDS >12 was 7.73 per 100 (95% CI: 6.96 to 7.78). The final parsimonious logistic regression models included measures of infant behaviour, financial stress, mother’s expectation of motherhood, emotional support, sole parenthood, social support and mother’s country of birth.

Conclusions

Infant temperament and unmet maternal expectations have a strong association with depressive symptoms with implications for the design of both preventative and treatment strategies. The findings also support the proposition that social exclusion and social isolation are important determinants of maternal depression.

Keywords:
Postnatal depression; Temperament; Maternal expectations; Social support; Social isolation; Migrant