Table 7.

Multivariate analysis for predictors of ‘Major’ procedural myocardial injury in patients with normal pre-PCI baseline cTn levels

Normal baseline cTn population	Crude OR	Adjusted OR	P
Left main or proximal left anterior descending artery	1.49 (1.12–1.17)	1.19 (1.07–1.33)	0.002*
Stent length (per 10 mm increase)	1.14 (1.12–1.17)	1.13 (1.10–1.16)	<0.001*
Age (risk per 5 years increase)	1.08 (1.05–1.11)	1.07 (1.04–1.1)	<0.001*
Stent diameter (risk per 0.25 mm increase)	1.04 (1.03–1.05)	1.02 (1.1–1.03)	0.029*
Prior coronary artery bypass graft	1.02 (0.86–1.21)	1.00 (0.84–1.19)	0.99
Hypertension	1.11 (0.99–1.20)	1.03 (0.89–1.13)	0.96
Women (vs. men)	1.02 (0.91–17)	0.97 (0.85–1.11)	0.65
Smoker	0.85 (0.76–0.94)	0.94 (0.84–1.05)	0.27
Prior myocardial infarction	0.81 (0.72–0.92)	0.91 (0.8–1.03)	0.12
Diabetes	0.89 (0.78–1.00)	0.86 (0.76–0.98)	0.02*

Variables associated with 1-year mortality (univariate P-value <0.2) were included in the multivariate model: major procedural myocardial injury, age (per 5 years increase), diabetes, active or prior smoking, hypertension, prior MI, prior coronary artery bypass graft surgery, multivessel stenting, number of stent. Number of observations = 8924, AIC value = 6450.

^*A significant P < 005.