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Open Access Research article

Associations of depression and depressive symptoms with preeclampsia: results from a Peruvian case-control study

Chunfang Qiu1*, Sixto E Sanchez2, Nelly Lam3, Pedro Garcia3 and Michelle A Williams14

Author Affiliations

1 Center for Perinatal Studies, Swedish Medical Center, 1124 Columbia Street, Suite 750, Seattle, WA 98104, USA

2 Health Direction V Lima City: Jr. Antonio Raymondi 220, La Victoria, Lima, Peru

3 Materno Perinatal Institute, Jr. Antonio Miroquezada 941, Barrios Altos, Lima, Peru

4 Department of Epidemiology, University of Washington, School of Public Health and Community Medicine, 1959 NE Pacific Street (HSB F-343; Box 357236), Seattle, WA 98195, USA

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BMC Women's Health 2007, 7:15  doi:10.1186/1472-6874-7-15

Published: 27 September 2007

Abstract

Background

Preeclampsia involves endothelial dysfunction, platelet dysfunction/activation and sympathetic over-activity similar to cardiovascular disorders (CVD). Depression, an independent risk factor for progression of CVD, was found to be associated with an increased risk of preeclampsia among Finnish women. We examined the relation between depression/depressive symptoms and preeclampsia risk among Peruvian women.

Methods

The study included 339 preeclamptic cases and 337 normotensive controls. Depression and depressive symptoms during pregnancy were assessed using the Patient Health Questionnaire (PHQ-9). Odds ratios (OR) and 95% confidence intervals (CI) were estimated from logistic regression models.

Results

The prevalence of moderate depression was 11.5% among cases and 5.3% among controls. The corresponding figures for moderate-severe depression were 3.5% for cases and 2.1% for controls. Compared with non-depressed women, those with moderate depression had a 2.3-fold increased risk of preeclampsia (95% CI: 1.2–4.4), while moderate-severe depression was associated with a 3.2-fold (95% CI: 1.1–9.6) increased risk of preeclampsia. Associations of each of the 9-items of the PHQ-9 depression screening module with preeclampsia risk were also observed.

Conclusion

Our findings are consistent with the only other published report on this topic. Collectively, available data support recent calls for expanded efforts to study and address depression among pregnant women.