Increase in physical activity is associated with an increase in sleep efficiency, but not with improvement in symptoms of PTSD: analysis of longitudinal data in trauma-affected refugees

Table 4 Multiple regression analyses of change in level of physical activity on change in PTSD symptoms (HTQ), quality of sleep (PSQI), quality of life (WHO-5), and sleep efficiency (SE) adjusted for baseline score, age and sex

	HTQ					PSQI					SE					WHO-5
	β	95% CI for β		p	R²	β	95% CI for β		p	R²	β	95% CI for β		p	R²	β	95% CI for β		p	R²
		LL	UL				LL	UL				LL	UL				LL	UL
					0.12					0.18					0.28					0.13
Baseline score	0.29	0.12	0.44	0.001*		0.37	0.22	0.52	< 0.0001*		0.28	0.10	0.45	0.002*		0.28	0.12	0.043	0.0001*
Age	-0.22	-0.37	-0.07	0.005*		-0.24	-0.42	-0.06	0.008*		-0.06	-0.32	0.19	0.625		0.23	0.06	0.40	0.006
Sex	0.00	-0.16	0.16	0.993		0.02	-0.14	0.14	0.978		-0.02	-0.26	0.22	0.866		-0.07	-0.24	0.09	0.373
M10	-0.15	-0.54	0.24	0.452		-0.06	-0.26	0.31	0.868		0.40	0.15	0.64	0.002*		0.08	-0.23	0.38	0.613

β = standardized coefficient, CI = confidence intervals, LL = lower limit, UL = upper limit, R² = Adjusted R-square for full model
Statistically significant associations (p < 0.05) are indicated in bold and with an *
HTQ, Harvard Trauma Questionnaire (1 best score), PSQI Pittsburgh Sleep Quality Index (1 best score), WHO-5 Well Being Index (100 best score), M10, mean activity score of the most active 10-hour period, measured in counts/hour; SE Sleep efficiency, measured in %

ISSN: 2731-4391