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Meta-Analysis
. 2013 Jun 19;8(6):e66435.
doi: 10.1371/journal.pone.0066435. Print 2013.

Prevalence of PTSD in Survivors of Stroke and Transient Ischemic Attack: A Meta-Analytic Review

Donald Edmondson  1 , Safiya Richardson, Jennifer K Fausett, Louise Falzon, Virginia J Howard, Ian M Kronish
Affiliations
Meta-Analysis

Prevalence of PTSD in Survivors of Stroke and Transient Ischemic Attack: A Meta-Analytic Review

Donald Edmondson et al. PLoS One. .

Abstract

Background and purpose: Posttraumatic stress disorder (PTSD) is common in survivors of acute life-threatening illness, but little is known about the burden of PTSD in survivors of stroke and transient ischemic attack (TIA). This study estimated the prevalence of stroke or TIA-induced posttraumatic stress disorder (PTSD) using systematic review and meta-analysis.

Methods: Potentially relevant peer-reviewed journal articles were identified by searching the Ovid MEDLINE, PsycINFO, PILOTS Database, The Cochrane Library and Scopus from inception to January 2013; all searches were conducted on January 31, 2013. Observational cohort studies that assessed PTSD with specific reference to a stroke or TIA that occurred at least 1 month prior to the PTSD assessment were included. PTSD rates and characteristics of the study and sample were abstracted from all included studies. The coding of all articles included demographics, sample size, study country, and method and timing of PTSD assessment.

Results: Nine studies (N = 1,138) met our inclusion criteria. PTSD rates varied significantly across studies by timing of PTSD assessment (i.e., within 1 year of stroke/TIA versus greater than 1 year post-stroke/TIA; 55% of heterogeneity explained; Q 1 = 10.30; P = .001). Using a random effects model, the estimated rate of PTSD following stroke or TIA was 23% (95% CI, 16%-33%) within 1 year of the stroke or TIA and 11% (95% CI, 8%-14%) after 1 year.

Conclusions: Although PTSD is commonly thought to be triggered by external events such as combat or sexual assault, these results suggest that 1 in 4 stroke or TIA survivors develop significant PTSD symptoms due to the stroke or TIA. Screening for PTSD in a large population-based prospective cohort study with cardiovascular outcome assessments is needed to yield definitive prevalence, and determine whether stroke or TIA-induced PTSD is a risk factor for subsequent cardiovascular events or mortality.

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Conflict of interest statement

Competing Interests: The authors have no competing interests.

Figures

Figure 1
Figure 1. Search strategy flowchart.
Figure 2
Figure 2. Stroke-induced PTSD prevalence estimates.
Note: The area of each square is proportional to the study's weight in the meta-analysis, and each line represents the confidence interval around the estimate. Diamonds represent aggregate estimates, by PTSD assessment timing and overall, and their lateral points indicate confidence intervals for the estimates.
Figure 3
Figure 3. Funnel plot to assess publication bias across prevalence studies.
See this image and copyright information in PMC

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