Prevalence of post-traumatic stress disorder in pregnant women with prior pregnancy complications

Objective. To assess the prevalence of post-traumatic stress disorder (PTSD) in pregnant women with prior pregnancy complications.

Methods. Seventy-six pregnant women at a maternal–fetal medicine referral clinic were asked to complete an anonymous questionnaire. Fifty-six women had a prior pregnancy complication (study group), and the remaining 20 had none (comparison group). Subjects were assessed with a questionnaire consisting of a modified patient-rated version of the Clinician Administered PTSD Scale (CAPS). The modified CAPS was used to approximate the prevalence of full or partial PTSD related to a prior pregnancy complication using two scoring rules, the rule-of-3 (original rule) and rule-of-4 (more stringent rule).

Results. The prevalence of full PTSD among women with prior pregnancy complications was 12.5% and 8.9% based on the rule-of-3 and rule-of-4, respectively. For partial PTSD, the prevalence was 28.6% based on the rule-of-3 versus 17.9% based on the rule-of-4. The most common type of complication was miscarriage, accounting for 73.5% of the reported complications. None of the women in the comparison group met criteria for full or partial PTSD.

Conclusions. The prevalence of PTSD in pregnant women with a prior pregnancy-related complication is considerable. These findings provide additional evidence that pregnancy complications can be experienced as traumatic, and as such lead to partial or full PTSD symptoms.