Table 4.

Multiple regression analysis for influence of BMI on a relationship between BNP and LVEF.

Explanatory variable (n = 557)	β-Coefficient	95% CI	P-value
LVEF	-11.645	-17.906, -5.385	<0.001
BMI	-21.508	-35.850, -7.165	0.003
LVEF × BMI	0.278	0.027, 0.529	0.030
Constant	872.043	514.231, 1229.855	<0.001

Objective variable: BNP (R²: 0.173)

Explanatory variable used in the equation: LVEF, BMI, LVEF × BMI

Abbreviation as in Table 1.