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Fear of childbirth predicts postpartum depression: a population-based analysis of 511 422 singleton births in Finland
  1. Sari Räisänen1,2,
  2. Soili M Lehto3,4,
  3. Henriette Svarre Nielsen5,
  4. Mika Gissler6,7,
  5. Michael R Kramer1,
  6. Seppo Heinonen2,4
  1. 1Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
  2. 2Department of Obstetrics and Gynaecology, Kuopio University Hospital, Kuopio, Finland
  3. 3Department of Psychiatry, Kuopio University Hospital, Kuopio, Finland
  4. 4Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
  5. 5Fertility Clinic, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
  6. 6Information Department, National Institute for Health and Welfare (THL), Helsinki, Finland
  7. 7Nordic School of Public Health, Gothenburg, Sweden
  1. Correspondence to Dr Sari Räisänen; shraisan{at}student.uef.fi

Abstract

Objectives To study how reproductive risks and perinatal outcomes are associated with postpartum depression treated in specialised healthcare defined according to the International Classification of Diseases (ICD)-10 codes, separately among women with and without a history of depression.

Design A retrospective population-based case–control study.

Setting Data gathered from three national health registers for the years 2002−2010.

Participants All singleton births (n=511 422) in Finland.

Primary outcome measures Prevalence of postpartum depression and the risk factors associated with it.

Results In total, 0.3% (1438 of 511 422) of women experienced postpartum depression, the prevalence being 0.1% (431 of 511 422) in women without and 5.3% (1007 of 18 888) in women with a history of depression. After adjustment for possible covariates, a history of depression was found to be the strongest risk factor for postpartum depression. Other strong predisposing factors for postpartum depression were fear of childbirth, caesarean birth, nulliparity and major congenital anomaly. Specifically, among the 30% of women with postpartum depression but without a history of depression, postpartum depression was shown to be associated with fear of childbirth (adjusted OR (aOR 2.71, 95% CI 1.98 to 3.71), caesarean birth (aOR 1.38, 95% CI 1.08 to 1.77), preterm birth (aOR 1.65, 95% CI 1.08 to 2.56) and major congenital anomaly (aOR 1.67, 95% CI 1.15 to 2.42), compared with women with no postpartum depression and no history of depression.

Conclusions A history of depression was found to be the most important predisposing factor of postpartum depression. Women without previous episodes of depression were at an increased risk of postpartum depression if adverse events occurred during the course of pregnancy, especially if they showed physician-diagnosed fear of childbirth.

  • EPIDEMIOLOGY
  • MENTAL HEALTH
  • STATISTICS & RESEARCH METHODS

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/

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