Table 4.

Effects of various variables on postoperative atrial fibrillation in univariate and multivariate logistic regression analyses

Variables	Unadjusted OR	95% CI	p value	Adjusted OR1	95% CI	p value
Age	1.075	1.029 – 1.123	0.001	1.078	1.030 – 1.128	0.001
Male sex	1.077	0.463 – 2.507	0.863
BMI	1.041	0.968 – 1.120	0.279
Gensini score	0.993	0.979 – 1.007	0.323
WBC	0.924	0.796 – 1.072	0.298
P/L ratio	1.014	1.004 – 1.024	0.005	1.014	1.004 – 1.024	0.007
LVEF	1.002	0.964 – 1.041	0.934
LA diameter	2.972	0.827 – 10.679	0.095
Cardiopulmonary bypass time	1.004	0.994 – 1.015	0.418
Cross clamp time	1.002	0.986 – 1.019	0.774

OR, odds ratio; BMI, body mass index; WBC, white blood cells; P/L, platelet/lymphocyte; LVEF, left ventricular ejection fraction; LA, left atrium.

¹Adjusted for age, P/L ratio, and intensive care unit duration.