Correlation between health-related quality of life in the physical domain and heart rate variability in asymptomatic adults

Table 3 Hierarchical regression analyses of mean RR intervals and all indices of heart rate variability

		Mean RR intervals		Var		VLF		LF		HF		Ratio
		Standardized regression coefficient and p-value
		β	p	β	p	β	p	β	p	β	p	β	p
Step 1	Gender	-	-	0.03	0.60	0.03	0.56	0.09	0.08	0.02	0.71	-	-
	Age	-	-	−0.40	<.001	−0.36	<.001	−0.34	<.001	−0.45	<.001	0.14	0.01
	Physical activity	-	-	0.14	0.004	0.12	0.02	0.16	0.001	0.10	0.04	-	-
	Alcohol use	-	-	-	-	-	-	−0.10	0.04	-	-	−0.12	0.03
	BDI	−0.11	0.04	−0.20	<.001	−0.20	<.001	-	-	−0.21	<.001	0.15	0.006
	BAI	-	-	−0.21	<.001	−0.13	0.008	−0.20	<.001	−0.15	0.002	-	-
	R ²	1.2 %		27.4 %		20.9 %		24.4 %		27.9 %		5.5 %
Step 2	Gender	-	-	0.02	0.68	0.03	0.63	0.09	0.09	0.02	0.75	-	-
	Age	-	-	−0.35	<.001	−0.31	<.001	−0.31	<.001	−0.42	<.001	0.14	0.01
	Physical activity	-	-	0.11	0.02	0.10	0.04	0.14	0.003	0.09	0.07	-	-
	Alcohol use	-	-	-	-	-	-	−0.10	0.04	-	-	−0.12	0.03
	BDI	−0.11	0.06	−0.18	<.001	−0.18	<.001	-	-	−0.20	<.001	0.15	0.006
	BAI	-	-	−0.18	<.001	−0.11	0.03	−0.18	<.001	−0.13	0.006	-	-
	WHOQOL-BREF physical health domain	0.08	0.17	0.23	<.001	0.21	<.001	0.16	0.002	0.11	0.03	0.06	0.27
	R ²-changes	0.6 %		4.8 %		3.9 %		2.3 %		1.0 %		0.3 %
	F	1.93		22.92		16.53		10.06		4.72		1.12
	p value	0.17		<.001		<.001		0.002		0.03		0.27

Abbreviations: Var total variance [ln(ms2)], VLF very low-frequency power [ln(ms2)], LF low frequency power [ln(ms2)], HF high frequency power [ln(ms2)], LF/HF, ratio of LF to HF [ln(ratio)], BDI Beck Depression Inventory, BAI Beck Anxiety Inventory, WHOQOL-BREF World Health Organization Questionnaire on Quality of Life: Short Form- Taiwan version

ISSN: 1477-7525