All patientsn=1542 Young</= 50 yearsn=182 (11.8%) Elderly> 50 yearsn=1360 (88.2%) p value
Age (yrs), median (IR) 67 (58-77) 47 (44-49) 70 (61-78) <0.001
M/F 1127/415 159/23 968/392 <0.001
(73.1/26.9) (87.4/12.6) (71.2/28.8)
BMI  (Kg/m2) , median (IR) 26.1 (23.9-27.9) 26.3 (24.7-28.6) 26.0 (23.8-27.8) 0.023
BMI (Kg/m2), frequency (%) 0.151
=25 556 (36.2) 56 (30.8) 503 (37.0)
>25 to  =30 771 (50.3) 95 (52.2) 680 (50.0)
>30 207 (13.5) 31 (17.0) 177 (13.0)
History of, frequency (%)
Diabetes mellitus 362 (23.5) 27 (14.8) 339 (24.9) 0.004
Smoking 940 (61.0) 152 (83.5) 788 (57.9) <0.001
COPD 137 (8.9) 5 (2.7) 132 (9.7) 0.002
Previous PCI 211 (13.7) 16 (8.8) 195 (14.3) 0.041
Previous MI 214 (13.9) 15 (8.2) 199 (14.6) 0.019
Hypertension 820 (53.2) 60 (33.0) 760 (55.9) <0.001

BMI: body mass index; COPD: chronic obstructive pulmonary disease; PCI: percutaneous coronary intervention; MI: myocardial infarction


Table 1 . Differences in risk factors between elderly and young patients