Prognostic relevance of ventricular arrhythmias in surgical patients with gastrointestinal tumors

Table 2 Risk factors for major adverse cardiovascular events among patients with gastrointestinal tumors

Risk factors	Univariable Cox regression		Multivariable Cox regression
	HR (95%CI)	P value	HR (95%CI)	P value
Age as per 1 yr increase	1.161 (1.066-1.264)	0.001	1.150 (1.058-1.251)	0.001
Creatinine as per 1 μmol/L increase	1.021 (1.006-1.036)	0.006
Troponin I > 0.028 as yes vs no	4.981 (1.445-17.167)	0.011	4.208 (1.098-16.127)	0.036
Premature ventricular contractions > 35 as yes vs no	1.222 (0.372-4.010)	0.741
NSVT as yes vs no	4.775 (1.266-18.013)	0.021

CI: Confidence interval; HR: Hazard ratio; NSVT: Non-sustained ventricular tachycardia.