Figure 5.

Graphed results for secondary analyses, for secondary outcome measures/psychosocial self-report/questionnaires for PTSD (A,B); and depression (C–E). All participants were studied for each secondary outcome measure, but only in subgroups as stratified by level of severity at entry [mild, moderate, severe]. (A) Scores less than 36 (mild or no PTSD) showed little change post-treatment in either group, or at either post- testing time point. (B) In contrast to that, for those entering with PCL-C scores greater than 36 (indicative of PTSD symptoms reported at the clinical level), both groups reported reduced PTSD at 1-week post-treatment. However, at 1-month, only the real LED group continued to report even fewer PTSD symptoms, while those in sham, reported increased symptoms, toward entry values. (C) For depression, on the beck depression inventory, there was no change for those with mild or no depression (BDI scores of only 0–19, at entry) in either treatment condition at any time of post- testing. (D,E) However, for those with moderate or severe depression (BDI scores of 20–29, or >30, respectively), those in the sham and real LED groups both reported less depression at 1 week post- treatment. At 1 month post- treatment, however, both groups began to return slightly toward entry values. No difference between sham and real LED was observed, likely due to small numbers in the subgroups.