Research Article

US Veterans Show Improvements in Subjective but Not Objective Sleep following Treatment for Posttraumatic Stress Disorder: Secondary Analyses from a Randomised Controlled Trial

Table 1

Baseline demographics and clinical characteristics by treatment group across samples.

ITTPPValid Actigraphy
CPT ()SKY ()CPT ()SKY ()CPT ()SKY ()

Age56.4 (12.9)57.4 (12.6)58.2 (13.0)60.7 (11.0)56.2 (13.5)58.3 (11.8)
% male/female93.2/6.882.9/17.193.1/6.976.8/23.291.9/8.183.3/16.7
% white65.953.765.560.067.652.8
% married or domestic partner45.434.141.436.743.236.1
% bachelor’s degree or higher31.824.427.523.335.122.2
Total CAPS-534.1 (14.4)32.3 (14.2)31.6 (14.2)30.1 (12.5)34.1 (14.9)33.2 (14.7)
Adjusted CAPS-5a30.4 (12.7)28.5 (12.9)28.5 (12.7)26.5 (11.2)30.2 (13.2)29.4 (13.4)
Total PCL-C56.2 (11.7)56.9 (13.6)49.6 (9.0)53.6 (11.6)55.7 (11.6)56.4 (14.2)
Adjusted PCL-Ca49.8 (10.2)50.0 (12.3)47.7 (10.4)49.0 (11.8)49.2 (10.2)49.4 (12.9)
Total PCL-552.7 (10.4)55.4 (11.7)49.6 (9.0)53.6 (11.6)51.6 (9.9)55.8 (11.7)
Adjusted PCL-5a47.7 (9.5)49.9 (10.8)45.2 (8.3)48.1 (10.9)46.5 (9.2)50.0 (11.1)
% comorbid MDDb43.248.841.443.337.852.8
% comorbid anxiety disorderb61.458.555.260.056.858.3
% comorbid AUDb20.519.513.813.318.922.2
Probability of sleep apnoeac.69 (.22).66 (.23).69 (.23).66 (.24).69 (.23).66 (.22)
Restless Legs Scorec-12.4 (15.6)-9.0 (18.4)-11.8 (17.4)-10.0 (18.3)-13.1 (15.5)-7.6 (18.2)

Note. ITT = intent-to-treat; PP = per protocol; CPT = cognitive processing therapy; SKY = Sudarshan kriya yoga; CAPS-5 = Clinician-Administered PTSD Scale for DSM-5; PCL-C = PTSD Checklist–Civilian Version (outcome measure); PCL-5 = PTSD Checklist for DSM-5 (screening measure). Except where indicated by %, values are presented in the format M (SD), where M = mean and SD = standard deviation. aInsomnia and nightmare items removed, per recommendations (e.g., [30]). bAssessed via the Mini International Neuropsychiatric Interview for DSM-5 (MINI; [31]). MDD = major depressive disorder; AUD = alcohol use disorder. Anxiety disorder includes any of generalised anxiety, social anxiety, panic, or agoraphobia disorders. cAssessed via the MAPI and RLS-DI, respectively.