Exploring factors associated with bleeding events after open heart surgery in patients on dialysis − effects of the presence or absence of warfarin therapy

Table 4 Univariate Cox proportional hazards regression analysis

	HR	Lower 95% CI	Upper 95% CI	p
Age	1.100	0.974	1.267	0.136^§
Male	0.437	0.073	2.617	0.365
Height	0.946	0.863	1.041	0.384
BW	0.923	0.837	1.001	0.054^§
BMI	0.759	0.500	1.015	0.067^§
Hb	0.832	0.416	1.557	0.245
NYHA	1.131	0.326	3.222	0.832
EF	1.029	0.969	1.127	0.392
Euro-score II※	1.964	0.619	6.354	0.245
Beta-blocker	0.696	0.116	4.164	0.691
WF	0.758	0.127	4.540	0.762
Anti-platelet	0.358	0.060	2.148	0.261
AVR	1.684	0.188	15.080	0.641

^§Because the purpose of the analysis was screening, the statistical significance level was set at p < 0.15 for convenience, and items were selected for multivariate analysis
※natural logarithmic transformation. AVR, aortic valve replacement; BMI, body mass index; BW, body weight; CI, confidence interval; EF, ejection fraction; Hb, hemoglobin; HR, hazard ratio; NYHA, New York Heart Association

ISSN: 2055-0294