Estimated group means | Tests of effects | Cohen’s d between groups | ||||||||||||||
Intervention | Control | Group | Time | Group * Time | ||||||||||||
Mean | SE | 95% CI | Mean | SE | 95% CI | F | P value | df | F | P value | df | F | P value | Post | Follow-up | |
ISI | 2.88 | 0.09 | 185.39 | 6.73 | 0.00 | 148.41 | 2.57 | 0.08 | 0.30 | 0.39 | ||||||
Baseline | 10.65 | 0.51 | 9.64 to 11.66 | 10.74 | 0.49 | 9.78 to 11.71 | ||||||||||
Post | 8.83 | 0.54 | 7.76 to 9.90 | 10.15 | 0.52 | 9.12 to 11.19 | ||||||||||
Follow-up | 8.83 | 0.59 | 7.66 to 10.00 | 10.58 | 0.54 | 9.51 to 11.65 | ||||||||||
KSQ | 1.02 | 0.31 | 196.14 | 11.25 | 0.00 | 153.04 | 0.75 | 0.47 | −0.22 | −0.17 | ||||||
Baseline | 4.07 | 0.10 | 3.87 to 4.27 | 4.03 | 0.10 | 3.84 to 4.22 | ||||||||||
Post | 4.42 | 0.10 | 4.22 to 4.62 | 4.23 | 0.10 | 4.04 to 4.43 | ||||||||||
Follow-up | 4.34 | 0.11 | 4.11 to 4.56 | 4.20 | 0.10 | 4.00 to 4.40 | ||||||||||
SMBQ Global | 1.45 | 0.23 | 190.01 | 0.17 | 0.84 | 149.74 | 4.03 | 0.02 | 0.36 | 0.19 | ||||||
Baseline | 3.74 | 0.12 | 3.51 to 3.97 | 3.71 | 0.11 | 3.49 to 3.93 | ||||||||||
Post | 3.54 | 0.12 | 3.30 to 3.77 | 3.89 | 0.11 | 3.67 to 4.12 | ||||||||||
Follow-up | 3.66 | 0.12 | 3.43 to 3.90 | 3.84 | 0.11 | 3.63 to 4.06 | ||||||||||
SMBQ Fatigue | 3.90 | 0.05 | 187.18 | 1.05 | 0.35 | 147.17 | 3.87 | 0.02 | 0.45 | 0.30 | ||||||
Baseline | 3.73 | 0.13 | 3.48 to 3.98 | 3.79 | 0.12 | 3.55 to 4.02 | ||||||||||
Post | 3.62 | 0.14 | 3.35 to 3.88 | 4.14 | 0.13 | 3.89 to 4.40 | ||||||||||
Follow-up | 3.64 | 0.14 | 3.37 to 3.91 | 3.96 | 0.13 | 3.71 to 4.21 | ||||||||||
SMBQ Cognitive | 0.10 | 0.76 | 189.40 | 0.43 | 0.65 | 147.13 | 3.53 | 0.03 | 0.24 | 0.03 | ||||||
Baseline | 3.47 | 0.15 | 3.17 to 3.77 | 3.33 | 0.14 | 3.04 to 3.61 | ||||||||||
Post | 3.16 | 0.16 | 2.85 to 3.47 | 3.47 | 0.15 | 3.18 to 3.77 | ||||||||||
Follow-up | 3.37 | 0.16 | 3.06 to 3.69 | 3.37 | 0.15 | 3.08 to 3.66 | ||||||||||
WIPL Fatigue | 0.31 | 0.58 | 184.30 | 0.44 | 0.65 | 149.17 | 5.37 | 0.01 | 0.33 | 0.02 | ||||||
Baseline | 3.43 | 0.09 | 3.25 to 3.62 | 3.32 | 0.09 | 3.14 to 3.49 | ||||||||||
Post | 3.20 | 0.10 | 2.99 to 3.40 | 3.48 | 0.10 | 3.29 to 3.68 | ||||||||||
Follow-up | 3.30 | 0.11 | 3.08 to 3.51 | 3.32 | 0.10 | 3.13 to 3.52 | ||||||||||
SSS8 | 4.48 | 0.04 | 176.33 | 16.30 | 0.00 | 132.72 | 3.81 | 0.03 | 0.37 | 0.49 | ||||||
Baseline | 10.82 | 0.61 | 9.61 to 12.03 | 11.25 | 0.58 | 10.11 to 12.39 | ||||||||||
Post | 11.73 | 0.69 | 10.36 to 13.09 | 13.67 | 0.65 | 12.38 to 14.95 | ||||||||||
Follow-up | 11.96 | 0.73 | 10.51 to 13.41 | 14.69 | 0.68 | 13.36 to 16.02 |
Factor labels in tests of effects: Group=Intervention vs Control, Time=Baseline vs Post vs Follow-up, Group*time=interaction term. Df (df) for Time and Group*time are identical.
ISI, Insomnia Severity Index, 0–28 severe problems; KSQ, Karolinska Sleep Questionnaire, 1 always— 6 never; Mean, modelled mean values; SMBQ, Shirom-Melamed Burn-out Questionnaire, 1 almost never—7 almost always; SSS8, Somatic Symptom Scale-8, 0–32 very high somatic symptom burden; WIPL, Work Interference with Personal Life, 1 not at all—5 almost all the time.