Table 3.

Complications in patients with AMI by age groups

Major complications	Age groups		P value	Total sample (n=5530)
	65–74 (n=3709)	75–84 (n=1821)
Cardiac arrest in hospital	403 (10.9%)	256 (14.1%)	<0.001	659 (11.9%)
Cardiogenic shock	253 (6.8%)	149 (8.2%)	0.075	402 (7.3%)
Pulmonary oedema	172 (4.6%)	85 (4.7%)	1	257 (4.6%)
Bradycardia	225 (6.1%)	99 (5.4%)	0.380	324 (5.9%)
Ventricular fibrillation	121 (3.3%)	50 (2.7%)	0.336	171 (3.1%)
Ventricular tachycardia	149 (4.0%)	82 (4.5%)	0.437	231 (4.2%)
Reinfarction	92 (2.5%)	33 (1.8%)	0.140	125 (2.3%)
28-day case fatality	292 (7.9%)	209 (11.5%)	<0.001	501 (9.1%)

AMI, acute myocardial infarction.