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Table 1 Demographic characteristics of patients in the reperfusion therapy (RTG) group and non RTG group

From: Factors related to the use of reperfusion strategies in elderly patients with acute myocardial infarction

Variables RTG group (n = 268), n (%) Non RTG group (n = 84), n (%) P values OR values 95%C.I.
Social descriptive variables      
Ages (mean ± SD,years) 73 ± 5 77 ± 7 0.000   
Female 91(34.0%) 33(39.2%) 0.246 0.747 0.446-1.229
Married 221(82.5%) 59(70.2%) 0.004 2.383 1.332-4.268
Education level    0.049 1.424 1.007-1.946
Primary school 115(42.9%) 45(53.6%)    
Middle school 55( 20.5%) 15(17.9%)    
Undergraduate/graduate 98(36.8%) 24(28.6%)    
Salaries (RMB/ month)    0.032 1.521 1.038-2.358
<500 31(11.6%) 21(25.0%)    
500 ~ 2000 153(57.1%) 43(51.2%)    
2000 ~ 5000 70(26.1%) 16(19.0%)    
>5000 14(5.2%) 4(4.8%)    
Medical insurance 218(81.3%) 55(65.5%) 0.002 2.393 1.427-4.397
Being professionally trained 38(14.2%) 8(9.5%) 0.091 2.251 0.831-5.416
Cardiovascular risk factors      
Hypertension 160(59.7%) 58(69.0%) 0.226 0.636 0.419-1.092
Diabetes 63(23.5%) 25(29.8%) 0.398 0.740 0.432-1.299
Hyperlipemia 59(22.0%) 18(21.4%) 0.860 0.992 0.529-1.820
Family history of coronary artery disease 19(7.1%) 3(3.6%) 0.229 2.570 0.551-12.203
Smoking 101(37.7%) 20(23.8%) 0.062 1.812 0.992-3.021
Medical histories      
MI, myocardial infarction 28(10.4%) 11(13.1%) 0.098 0.623 0.276-1.214
Angina 83(31.0%) 34(40.5%) 0.006 0.492 0.299-0.874
CHF, Chronic heart failure 16(5.6%) 4(4.8%) 0.289 0.508 0.132-1.892
Stroke 41(15.3%) 15(17.9%) 0.231 0.696 0.368-1.321
Backgrounds of MI      
Attack at night 89(33.2%) 32(38.1%) 0.261 0.794 0.456-1.902
Attack at home 231(86.2%) 73(86.9%) 0.872 1.069 0.452-2.349
Persons present at onset 222(82.8%) 71(84.5%) 0.325 1.419 0.781-2.283
Emergency medical services 128(47.8%) 42(50.0%) 0.568 1.119 0.730-1.952
ECG outside of hospital 118(44.0%) 34(40.5%) 0.258 1.302 0.817-2.354