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Table 1 Baseline characteristics of total sample and compliance groups: Compliant Regular Users, Sub-Compliant Regular Users, and Non-Compliant Minimal Usersa

From: Changes in insomnia severity with advanced PAP therapy in patients with posttraumatic stress symptoms and comorbid sleep apnea: a retrospective, nonrandomized controlled study

Item Total sample
(n = 96)
Compliant regular users
(C-RU, n = 68)
Sub-compliant regular users
(SC-RU, n = 12)
Non-compliant minimal users
(NC-MU, n = 16)
P-valueb
Sociodemographic
 Female [n(%)] 49 (51.0) 35 (51.5) 5 (41.7) 9 (56.3) 0.741
 Age (year) 49.29 ± 12.96 50.30 ± 13.06 43.88 ± 12.72 49.05 ± 12.47 0.288
 BMI (kg/m2) 33.95 ± 10.63 34.75 ± 11.14 35.81 ± 11.74 29.14 ± 5.41 0.133
 Caucasian [n(%)] 55 (57.3) 43 (63.2) 5 (41.7) 7 (43.8) 0.185
 Hispanic [n(%)] 31 (32.3) 20 (29.4) 5 (41.7) 6 (37.5) 0.625
 Some college or less [n(%)] 59 (61.5) 40 (58.8) 9 (75.0) 10 (62.5) 0.567
 Married/Living with partner [n(%)] 50 (52.1) 33 (48.5) 8 (66.7) 9 (56.3) 0.175
Baseline
 PSS 30.67 ± 8.11 29.97 ± 7.64 30.33 ± 6.02 33.88 ± 10.76 0.215
 ISI 20.47 ± 5.01 19.96 ± 5.41 20.83 ± 4.06 22.38 ± 3.32 0.222c
Sleep indices
 AHI-diagnostic 27.97 ± 27.83 30.34 ± 31.22 16.83 ± 11.69 26.29 ± 18.04 0.294
 RDI-diagnostic 51.58 ± 35.47 49.59 ± 38.74 50.95 ± 24.35 60.51 ± 26.97 0.545
Subjective sleep metrics
 SOL (min) 94.72 ± 92.41 87.09 ± 78.75 97.58 ± 89.80 125.00 ± 138.65 0.338
 SE (%) 71.9 ± 18.0 72.6 ± 17.7 81.6 ± 23.7 61.9 ± 23.0 0.029c
 WASO (min) 126.21 ± 113.63 110.71 ± 101.67 104.42 ± 109.77 208.44 ± 136.08 0.006c
Medications [n(%)]
 Hypnotics 42 (43.8) 26 (38.2) 7 (58.3) 9 (56.3) 0.235
 Mood Stabilizers 54 (56.3) 38 (55.9) 6 (50.0) 10 (62.5) 0.799
 Opiates 15 (15.6) 9 (13.2) 1 (8.3) 5 (31.3) 0.154
 Over the Counter 28 (29.2) 22 (32.3) 1 (8.3) 5 (31.3) 0.236
 Seizure Medication 17 (17.7) 11 (16.2) 2 (16.7) 4 (25.0) 0.704
  1. BMI Body mass index, PSS PTSD Symptom scale, ISI Insomnia severity index, AHI Apnea hypopnea index, RDI Respiratory disturbance index, SOL Sleep onset latency, SE Sleep efficiency, WASO Wake after sleep onset. aAverage expressed as: % or mean ± SD; bP-value obtained using: 3-way ANOVA for continuous variables, Chi Square for dichotomous variables; cExploratory analysis for significance and effect size in relevant variable by group comparisons:
  2. i) Finding of significance for ISI: C-RU vs. NC-MU (P = 0.91; g = 0.47); SC-RU vs. NC-MU (P = 0.597; g = 0.16); C-RU vs. SC-RU (P = 0.276; g = 0.41)
  3. ii) Finding of significance for SE: C-RU vs. NC-MU (P = 0.043, g = 0.56); SC-RU vs. NC-MU (P = 0.036, g = 0.82); C-RU vs. SC-RU (P = 0.129, g = 1.48)
  4. iii) Finding of significance for WASO: C-RU vs. NC-MU (P = 0.002, g = 0.89); SC-RU vs. NC-MU (P = 0.039, g = 1.80); C-RU vs. SC-RU (P = 0.846, g = 0.06)