Assessor Blinded?

Baselineb 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)

11.5e

 

 

No major limitations

−8

Yes

91%

−3

 

50%

No

 

 

No relapse at 30 months

No assessor blinding or independence

 

 

Yes

 

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.

SUMMATION

Based on its assessment of the psychotherapy approaches for which randomized controlled trials were available—exposure, EMDR, cognitive



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