Echo Research & Practice

Table 3 Univariate and multivariate linear regression analysis for Aortic Diameters

From: Two-dimensional echocardiographic and strain values of the proximal thoracic aorta in a normal sub-Saharan African population

Univariate analysis			Multivariate analysis
Aortic annulus			Model 1 aortic annulus: R = 0.15 P = 0.0015
Variables	β-Coefficient ± SE	P-value	Variables	β-Coefficient ± SE	P-value
Age (years)	0.05 ± 0.02	0.024	Age (years)	0.04 ± 0.02	0.109
BSA (m²)	3.80 ± 1.22	0.003	BSA (m²)	3.15 ± 2.40	0.193
BMI (kg/m²)	0.064 ± 0.03	0.071	BMI (kg/m²)	0.01 ± 0.08	0.885
Male	0.96 ± 0.52	0.071	Male sex	1.39 ± 0.65	0.037

Aortic sinuses			Model 2 aortic sinuses: R = 0.17 P = < 0.001
Variables	β-Coefficient ± SE	P-value	Variables	β-Coefficient ± SE	P-value
Age (years)	0.21 ± 0.06	0.001	Age (years)	0.15 ± 0.06	0.016
BSA (m²)	0.15 ± 3.08	0.001	BSA (m²)	8.09 ± 3.22	0.014
BMI (kg/m²)	0.149 ± 0.09	0.106
Male sex	1.20 ± 1.37	0.383

Sinuotubular junction			Model 3 sinotubular junction: R = 0.27 P < 0.001
Variables	β-Coefficient ± SE	P-value	Variables	β-Coefficient ± SE	P-value
Age (years)	0.12 ± 0.03	0.001	Age (years)	0.10 ± 0.03	0.004
BSA (m²)	6.84 ± 1.76	< 0.001	BSA (m²)	8.22 ± 3.30	0.015
BMI (kg/m²)	0.103 ± 0.05	0.051	BMI (kg/m²)	− 0.09 ± 0.11	0.383
Male sex	1.55 ± 0.77	0.049	Male sex	1.76 ± 0.89	0.054

Ascending aorta			Model 4 ascending aorta: R = 0.30 P < 0.001
Variables	β-Coefficient ± SE	P-value	Variables	β-Coefficient ± SE	P-value
Age (years)	0.14 ± 0.03	< 0.001	Age (years)	8.11 ± 3.34	0.018
BSA (m²)	7.61 ± 1.63	< 0.001	BSA (m²)	9.19 ± 2.65	< 0.001
BMI (kg/m²)	0.155 ± 0.04	0.001	BMI (kg/m²)	9.19 ± 2.65	0.085
Male sex	0.61 ± 0.76	0.418

BMI body mass index, BSA body surface area, DBP diastolic blood pressure, SBP systolic blood pressure

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ISSN: 2055-0464

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