Table 3.

Correlation analysis and adjustment of the regression model between the evaluated measures.

	Correlation		Regression
	r	P-value(*)	b	r2	P-value(**)
Time 1 x cefazolin 1	0.489	0.039	0.239	0.239	0.039
Time 2 x cefazolin 2	-0.793	< 0.001	-0.046	0.628	< 0.001
BMI x cefazolin 2	-0.510	0.031	-0.366	0.259	0.031

r=Pearson's coefficient; b= coefficients of the logistic equation; r²=strength of the association

^(*)P-value regarding Pearson's coefficient test.

^(**)P-value regarding Spearman's coefficient test