Key result
Five heart rate parameters from a psychophysiological assessment correctly discriminated 75% of male Vietnam veterans with and without PTSD, increasing to 80% when adding blood pressure parameters.
Why the study?
Can psychophysiological parameters (heart rate, blood pressure) accurately diagnose PTSD in male Vietnam combat veterans?
Cross-Sectional (n=200)
Can psychophysiological parameters (heart rate, blood pressure) accurately diagnose PTSD in male Vietnam combat veterans?
Heart rate and blood pressure parameters from psychophysiological assessments can help discriminate between veterans with and without PTSD.
Suggests autonomic parameters may aid PTSD screening in veterans; leaves open whether these psychophys.
In one sample of 104 male Vietnam combat veterans, we found that five heart rate parameters from a psychophysiological assessment could correctly discriminate 75% of the sample into those with PTSD and those without it. Using a stepwise approach, we found adding 10 blood pressure parameters increased discrimination to 80%, while adding five parameters from frontal electromyograms did not increase discrimination. Cross-validation of the heart rate parameters on a new sample of 96 veterans resulted in 83% correct discrimination.
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Blanchard et al. (1991) conducted a cross-sectional in Posttraumatic Stress Disorder (PTSD) (n=200). Psychophysiological assessment (heart rate and blood pressure parameters) was evaluated on Correct discrimination of PTSD status. Five heart rate parameters from a psychophysiological assessment correctly discriminated 75% of male Vietnam veterans with and without PTSD, increasing to 80% when adding blood pressure parameters.
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