Table 9Summary of the strength of evidence for KQs 1–3

Number of studies (subjects)Domains pertaining to strength of evidenceMagnitude of effecta and SOE
Risk of bias: design/qualityConsistencyDirectnessPrecisionPTSD symptoms: Effect estimate (95% CI)
KQ 1: Meditation vs. usual careLow SOE
1 (29)RCT/FairNot applicableDirectImpreciseSMD: −0.32 (−1.46 to 0.05), self-report PCL; −0.70 (−1.06 to 0.41), interviewer-based CAPS
KQ 1: Meditation vs. active treatmentInsufficient SOE
1 (25)RCT/PoorNot applicableDirectImpreciseNot estimated
KQ 1: Acupuncture vs. controlModerate SOE
1 (84)RCT/GoodNot applicableDirectImpreciseSMD: −0.92 (−1.51 to −0.32), self-report PSS-SR
KQ 1: Acupuncture vs. group CBTLow SOE
1 (84)RCT/GoodNot applicableDirectImpreciseSMD: −0.35 (−0.91 to 0.22), self-report PSS-SR
KQ 1: Relaxation vs. controlInsufficient SOE
1 (90)RCT/PoorNot applicableDirectImpreciseNot estimated
KQ 1: Relaxation vs. other active treatmentInsufficient SOE
2 (56)RCT/Fair to PoorConsistentDirectImpreciseLowb
SMD: 0.41 (−0.42 to 1.24), interviewer based SI-PTSD
SMD: 0.79 (−0.13 to 1.71), interviewer based SS-PTSD
KQ 2: Massage vs. controlInsufficient SOE
1 (8)RCT/FairNot applicableDirectImpreciseNot estimated
KQ 3: Movement-based and energy therapies vs. controlInsufficient SOE
NoneNANANANANA
a

A negative SMD indicates a greater effect for the CAM therapy.

b

SMDs were are reported separately for the two studies because a summary estimate was not indicated.

Abbreviations: CI = confidence interval, OR = odds ratio, NA = not applicable, RCT = randomized controlled trial, SMD = standardized mean difference, SOE = strength of evidence

From: SUMMARY AND DISCUSSION

Cover of Efficacy of Complementary and Alternative Medicine Therapies for Posttraumatic Stress Disorder
Efficacy of Complementary and Alternative Medicine Therapies for Posttraumatic Stress Disorder [Internet].
Strauss JL, Coeytaux R, McDuffie J, et al.
Washington (DC): Department of Veterans Affairs (US); 2011 Aug.

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