Managing Nonagenarians with Acute Myocardial Infarction: Invasive versus Conservative Treatment

Table 4

Results of multivariate Cox regression model.

Covariate	Coefficient	Standard error	value	Hazard ratio	95% CI lower	Upper
Age	0.117	0.099	0.236	1.124	0.926	1.363
Sex	−0.575	0.622	0.355	0.563	0.166	1.903
BMI	−0.064	0.069	0.356	0.938	0.819	1.075
Hypertension	−0.187	0.511	0.714	0.829	0.305	2.256
Diabetes	−0.331	0.541	0.541	0.718	0.249	2.074
Dyslipidemia	−0.120	1.279	0.925	0.887	0.072	10.875
Smoking	−0.247	0.723	0.732	0.781	0.179	3.224
History of CAD	0.035	0.673	0.958	1.036	0.277	3.873
Killip class	0.708	0.180	0.001	2.029	1.425	2.890
PCI	−1.315	0.385	0.001	0.269	0.126	0.571

CI, confidence interval; BMI, body mass index; CAD, coronary artery disease; PCI, percutaneous coronary intervention.