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J Psychosom Res. 2012 Oct;73(4):257-63. doi: 10.1016/j.jpsychores.2012.07.010. Epub 2012 Sep 1.

PTSD following childbirth: a prospective study of incidence and risk factors in Canadian women.

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1
Division of Clinical Epidemiology, McGill University Health Centre, Montreal, Canada. verreault.nancy@courrier.uqam.ca

Abstract

OBJECTIVE:

The goals of the present study were to estimate the incidence and course of full and partial Post-Traumatic Stress Disorder (PTSD) following childbirth and to prospectively identify factors associated with the development of PTSD symptoms at 1month following childbirth.

METHODS:

The sample comprised 308 women, with assessments at four time points: 25-40weeks gestation, 4-6weeks postpartum, 3 and 6months postpartum. Current and prior PTSD were assessed by the Structured Clinical Interview for DSM-IV (SCID-I) and the Modified PTSD Symptom Scale Self-Report (MPSS-SR).

RESULTS:

Incidence rates of PTSD varied according to time of measurement and instrument used, with higher rates of full and partial PTSD using the MPSS-SR at 1month postpartum (7.6% and 16.6%, respectively). Multivariate logistic regression showed that higher anxiety sensitivity (OR=1.75; 95% CI=1.19‒2.57, p=.005), history of sexual trauma (OR=2.81; 95% CI=1.07‒7.37, p=.036), a more negative childbirth experience than expected (OR=0.96; 95% CI=0.94‒0.98, p=.001), and less available social support at 1month postpartum (OR=0.40; 95% CI=0.17‒0.96, p=.041) independently predicted full or partial PTSD at 1month following childbirth.

CONCLUSION:

Our results indicate that a history of sexual trauma and anxiety sensitivity can increase the probability of developing PTSD after childbirth. The findings highlight the importance of screening and providing more tailored services for women at high risk.

[Indexed for MEDLINE]

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