Table 2.

Multiple linear regression function for PCSK9.

	Nonstandardized coefficients		Typified coefficients	t	P value	IC (95%) for B
	B	Typical error
iEAT	0.002	0.002	0.374	3.389	0.001	0.001 to 0.003
HbA1c	0.029	0.012	0.266	2.411	0.019	0.005 to 0.052
Constant	0.070	0.091		0.769	0.445	− 0.112 to 0.252

To evaluate the adjustment of the regression model to the observed data, different statistics were used, such as the multiple correlation coefficient (R = 0.498) and the coefficient of determination (R2 = 0.248). The R2 value indicates that 25% of the variation in PCSK9 is explained by the model. The corrected R2 is 0.225. The significance value of F (Fisher distribution) = 10.56 with a P value < 0.001 confirms that the model is appropriate.

Proconvertase subtilisin-kexin 9 (PCSK9); Epicardial adipose tissue index (iEAT).