BMC Cardiovascular Disorders

Table 7 Linear regression analysis of the association between SV3 amplitude (mv) and independent variables

From: The relationship between demographic features, anthropometric parameters, sleep duration, and physical activity with ECG parameters in Fasa Persian cohort study

Variables	Univariate			Multivariate
Variables	B	95% CI	P-value	B	95% CI	P-value
Age	− 0.002	− 0.003, − 0.002	< 0.001	− 0.002	− 0.002, − 0.001	< 0.001
Gender
Male	Ref
Female	0.003	− 0.006, 0.012	0.505	–	–	–
Marital status
Unmarried	Ref
Married	− 0.018	− 0.043, 0.006	0.147	0.005	− 0.019, 0.030	0.666
Widowed or divorced	− 0.022	− 0.052, 0.007	0.137	0.025	− 0.004, 0.055	0.100
BMI	− 0.003	− 0.004, − 0.002	< 0.001	− 0.003	− 0.004, − 0.002	< 0.001
Education level	0.003	0.002, 0.004	< 0.001	− 0.0001	− 0.001, 0.001	0.876
Wrist circumference	− 0.008	− 0.012, − 0.005	< 0.001	− 0.008	− 0.012, − 0.005	< 0.001
Hip circumference	− 0.001	− 0.001, − 0.0005	< 0.001	− 0.001	− 0.001, − 0.0006	< 0.001
Waist circumference	− 0.001	− 0.001, − 0.001	< 0.001	− 0.001	− 0.001, − 0.0007	< 0.001
MET	0.0002	− 0.0002, 0.0006	0.307	–	–	–
Diabetes
No	Ref
Yes	− 0.019	− 0.033, − 0.005	0.006	0.008	− 0.006, 0.023	0.255
Hypertension
No	Ref
Yes	− 0.054	− 0.066, − 0.043	< 0.001	− 0.030	− 0.043, − 0.017	< 0.001
Cardiac ischemic disease
No	Ref
Yes	− 0.040	− 0.054, − 0.025	< 0.001	− 0.010	− 0.025, 0.005	0.189
Sleep duration	0.002	− 0.0003, 0.004	0.090	0.0002	− 0.002, 0.002	0.854

BMI body mass index, MET metabolic equivalent of task

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ISSN: 1471-2261

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