Treatment of Posttraumatic Stress Disorder: An Assessment of the Evidence

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Treatment of Posttraumatic Stress Disorder: An Assessment of the Evidence (2008)
Board on Population Health and Public Health Practice (BPH)

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. "4 Evidence and Conclusions: Psychotherapy." Treatment of Posttraumatic Stress Disorder: An Assessment of the Evidence. Washington, DC: The National Academies Press, 2008.

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Treatment of Posttraumatic Stress Disorder: An Assessment of the Evidence

Assessor Blinded?	Baseline^b and Change in PTSD Measure	Statistically Significant? (versus control)	Loss of Diagnosis (%)	Principal Limitations
Yes	100.0%		Same as baseline and change	42% dropout
	−83.3%	Yes
	−25.0%
Yes (but broken in 4 Ss)	11.5^e			No major limitations
	−8	Yes	91%
	−3		50%
No			No relapse at 30 months	No assessor blinding or independence
		Yes	No relapse at 30 months
	31, 36
	−21		80%
	−0		0%
NR			NR	Assessor blinding or independence not reported
	19.4	Yes
	17.1	Yes
	13.6	Yes
	4.6
^dOutcome measure was “recovery proportions,” including no PTSD and fewer than six symptoms (SI-PTSD used to determine both). ^eData not provided; figures estimated based on visual inspection of a bar graph, with the help of a ruler. ^fBrainwave neurofeedback. ^gUsual care. ^hHypnosis. ⁱPsychodynamic therapy.

Conclusion: The committee concludes that the evidence is inadequate to determine the efficacy of group therapy formats in the treatment of PTSD.