Statistical Analysis
PTSD
REMISSION
Intent-to-treat statistical analyses were used. Hypothesis tests were 2-tailed and unadjusted at Linear mixed-effects models with repeated measures were used to evaluate continuous outcomes on the CAPS-5, PCL-5, SDS, and B-IPF with fixed main effects of group, time, and the group × time interaction effect. Piecewise pairwise comparisons were used to evaluate PTSD symptom reduction differences between the treatment groups from baseline to the 1-month follow-up and from the 1-month to 6-month follow-ups. Generalized linear models were used to evaluate treatment group differences in the proportion of participants who demonstrated PTSD diagnostic remission on the CAPS-5 at the 1-, 3-, and 6-month follow-ups. As a supplement to PTSD symptom and diagnostic remission outcomes, the proportion of participants who demonstrated a reliable change on the CAPS-5 and PCL-5 was calculated according to the Reliable Change Index (RCI)