Mortality Trends in Patients Hospitalized with the Initial Acute Myocardial Infarction in a Middle Eastern Country over 20 Years

Table 1

Patients characteristics according to study period (1991–2010).

Variables (%)	1991–2000	2001–2010	𝑃-value
Number (%)	3740 (34)	7175 (66)	0.001
Age in year (mean ± SD)	51±12	54±12	0.001
Age groups, years
≤50	1998 (53)	3074 (43)	0.001 For all
51–70	1510 (40)	3429 (48)
>70	232 (6)	668 (9)
Male gender	3316 (89)	6294 (88)	0.21
Ethnicity
South Asians	1828 (49)	3474 (48)
Middle East Arabs	1497 (40)	2642 (37)
Others	415 (11.1)	1059 (14.8)	0.001
Cardiovascular risk factors (%)
Hypertension	891 (23.8)	2834 (39.5)	0.001
Diabetes mellitus	1169 (31.3)	2967 (41.4)	0.001
Current Smoking	1086 (29)	2999 (42)	0.001
Dyslipidemia	959 (26)	1276 (18)	0.001
Family history of CAD	75 (2)	164 (2.3)	0.34
Body mass index (Kg/m^2) (mean ± SD)	25±4	27±6	0.001
Obesity	61 (1.6)	288 (4)	0.001
Chronic renal impairment	42 (1.1)	241 (3.4)	0.001
Total cholesterol (mmol/L) (mean ± SD)	5.4±1.2	5±1.3	0.001
High-density lipoprotein cholesterol (mmol/L) (mean ± SD)	1.03±0.23	1.02±0.31	0.73
Serum triglyceride (mmol/L) (mean ± SD)	2.04±1.2	1.9±1.16	0.001
CK-MB (u/L) (mean ± SD)	380±1091	190±570	0.001

CAD: coronary artery disease.