Assessor Blinded?

Baselineb and Change in PTSD Measure

Statistically Significant? (versus control)

Loss of Diagnosis (%)

Principal Limitations

NR

29.92, 37.08

 

 

Assessor blinding or independence not reported

 

−5.77

No

NR

 

−9.88

 

 

NR

NR

No

NR

No dropout or completer numbers reported; no outcome

dIOE is Impact of Events Scale (also known as IES). The three CAPS subscales were the primary study outcome measure.

eFollow-up in the Marcus et al., 1997, study was further analyzed in Marcus et al., 2004.

fBlind assessment was affected by client revelations.

gThe numbers randomized to each arm are unclear, but may be deduced to be either 11 or 10 for either, meaning that with completer numbers of EMDR 10 and WL 8, the respective dropout rates were either 0 for EMDR (100% completed) and 3 for WL (73% completed), or 1 for EMDR (91% completed) and 2 for WL (80% completed). The article states that two of the three patients who dropped out were assigned to WL, so one could conclude that the third patient that dropped out was probably assigned to EMDR. If that is true, the dropout rates would have been 91% and 80% for EMDR and WL, respectively.

Assessor Blinded?

Baselineb and Change in PTSD Measure

Statistically Significant? (versus control)

Loss of Diagnosis (%)

Principal Limitations

Yes

 

 

2 standard deviations decrease in score but reported by symptoms category

32% dropout handled with LOCF

 

NR

Yes

 

 

No

Yes

NR

 

All subjects

Outcome data aggregated, uninterpretable

 

−8.0 (E and EMDR groups)

No

78% baseline

 

−1.7

 

47% endpoint

cAt entry to the study all patients satisfied DSM-III-R Category B (reexperiencing/intrusive) and Category D (hyperarousal) criteria for PTSD. However 22% failed to qualify for a diagnosis of PTSD because they had less than the three required Category C (avoidance, numbing) symptoms. “This is a symptom pattern common in community samples (Creamer, 1989; Solomon and Canino, 1990) and has promoted moves to reduce the number of Category C criteria from three to two in DSM-IV (Davidson and Foa, 1993)” (Vaughn et al., 1994).

dImage habituation training.



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