Nomogram for predicting major bleeding after off-pump coronary artery bypass grafting

Table 2 multiple logistic regression analysis

Covariates	β	SE	Wald	p	OR (95%CI)
Age (years)	0.038	0.014	7.067	0.009	1.038 (1.009–1.068)
BMI (kg/m²)	-0.091	0.037	5.999	0.014	0.913 (0.849–0.982)
Hemoglobin, (g/L)	-0.043	0.007	37.515	< 0.001	0.958 (0.945–0.971)
Sodium, (mmol/L)	-0.136	0.040	11.231	0.001	0.873 (0.807–0.945)
BUN, (mmol/L)	0.181	0.056	10.315	0.001	1.198 (1.073–1.338)
Operation time, (min)	0.012	0.002	28.371	< 0.001	1.012 (1.008–1.017)

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