Table 4. Clinical characteristics of young patients with AMI.
| Variables | Groups | P-value | Groups | P-value | ||
|---|---|---|---|---|---|---|
| Non-events in hospital (n = 2065) | Events in hospital (n = 123) | Non-events out of hospital (n = 2098) | Events out of hospital (n = 90) | |||
| Deographic and clinical | ||||||
| Age (yrs) | 39.9 ± 4.6 | 39.4 ± 4.9 | NS | 39.8 ± 4.7 | 39.6 ± 4.3 | NS |
| Heart rate (beats/min) | 73.4 ± 12.7 | 79.4 ± 17.7 | 0.000 | 73.7 ± 13.0 | 74.5 ± 14.0 | NS |
| SBP (mm Hg) | 120.8 ± 16.3 | 119.1 ± 19.3 | NS | 120.7 ± 16.5 | 120.5 ± 16.2 | NS |
| DBP (mm Hg) | 75.9 ± 11.9 | 75.1 ± 14.3 | NS | 75.9 ± 12.1 | 76.7 ± 12.5 | NS |
| BMI (kg/m2) | 28.1 ± 3.2 | 28.3 ± 3.1 | NS | 28.1 ± 3.1 | 28.2 ± 3.6 | NS |
| Male (%) | 1964(95.1) | 113(91.8) | NS | 1991(94.8) | 86(95.5) | NS |
| Alcohol use (%) | 615(29.7) | 31(25.2) | NS | 628(29.9) | 18(20.0) | 0.043 |
| Smoke (%) | 1427(69.1) | 79(64.2) | NS | 1449(69.0) | 57(63.3) | NS |
| Hypertension (%) | 816(39.5) | 59(47.9) | NS | 840(40.0) | 35(38.8) | NS |
| Diabetes mellitus (%) | 387(18.7) | 31(25.2) | NS | 401(19.1) | 17(18.8) | NS |
| Hyperlipidemia (%) | 667(32.3) | 39(31.7) | NS | 653(31.1) | 30(33.3) | NS |
| Family historyof CAD (%) | 244(11.8) | 11(8.9) | NS | 243(11.5) | 12(13.3) | NS |
| Prior MI (%) | 86(4.1) | 7(5.6) | NS | 91(4.3) | 2(2) | NS |
| Biochemical | ||||||
| TC (mmol/L) | 4.73 ± 1.22 | 4.58 ± 1.07 | NS | 4.73 ± 1.22 | 4.61 ± 1.01 | NS |
| TG (mmol/L) | 2.75 ± 7.10 | 2.01 ± 1.29 | NS | 2.75 ± 7.09 | 2.00 ± 1.31 | NS |
| LDL-c (mmol/L) | 3.15 ± 5.81 | 2.80 ± 0.88 | NS | 3.15 ± 5.81 | 2.83 ± 0.84 | NS |
| HDL-c (mmol/L) | 0.96 ± 0.22 | 0.98 ± 0.26 | NS | 0.96 ± 0.22 | 0.99 ± 0.26 | NS |
| Scr (μmol/L) | 80.28 ± 38.51 | 81.15 ± 24.46 | NS | 80.35 ± 38.51 | 79.85 ± 23.54 | NS |
| BUN (mmol/L) | 7.35 ± 4.82 | 6.56 ± 4.21 | NS | 7.34 ± 4.82 | 6.85 ± 4.34 | NS |
| ALT (U/L) | 46.25 ± 35.83 | 56.76 ± 41.31 | NS | 46.35 ± 35.88 | 55.58 ± 41.31 | NS |
| γ-GT (U/L) | 51.88 ± 48.94 | 65.52 ± 83.02 | NS | 52.44 ± 50.08 | 66.40 ± 89.18 | NS |
| CK (U/L) | 842.38 ± 1286.09 | 1332.34 ± 1708.09 | 0.015 | 848.52 ± 1293.33 | 1229.67 ± 1640.81 | 0.049 |
| CK-MB (ng/ml) | 79.84 ± 181.77 | 106.74 ± 148.63 | NS | 80.29 ± 181.82 | 98.99 ± 147.31 | NS |
| cTnT (ng/ml) | 2.17 ± 2.04 | 3.25 ± 4.83 | 0.048 | 2.20 ± 2.21 | 2.69 ± 3.31 | NS |
| BNP (pg/ml) | 481.87 ± 2659.16 | 1140.97 ± 3404.97 | NS | 483.85 ± 2648.81 | 1199.77 ± 3624.89 | NS |
| Glucose (mmol/L) | 6.98 ± 2.87 | 8.08 ± 4.90 | 0.048 | 6.99 ± 2.89 | 7.94 ± 4.86 | NS |
| Glycosylatedhemoglobin (%) | 6.55 ± 1.87 | 6.10 ± 1.32 | NS | 6.48 ± 1.82 | 6.32 ± 1.55 | NS |
| Hematologic | ||||||
| Hemoglobin (g/L) | 147.23 ± 15.54 | 143.74 ± 16.65 | NS | 147.22 ± 15.57 | 143.65 ± 16.09 | NS |
| Red cell count (10*12/L) | 5.83 ± 2.04 | 5.16 ± 1.89 | 0.003 | 5.83 ± 2.04 | 5.21 ± 1.92 | 0.008 |
| White cell count (10*9/L) | 10.42 ± 3.55 | 10.44 ± 4.27 | NS | 10.41 ± 3.56 | 10.53 ± 4.25 | NS |
| PLT (10*9/L) | 239.78 ± 61.07 | 210.60 ± 46.11 | 0.043 | 238.03 ± 60.65 | 215.60 ± 50.72 | NS |
| RDW | 12.94 ± 0.71 | 13.25 ± 0.95 | NS | 12.94 ± 0.70 | 13.38 ± 1.03 | 0.034 |
| Echocardiography | ||||||
| LVDd (mm) | 50.13 ± 5.06 | 50.15 ± 5.62 | NS | 50.14 ± 5.13 | 49.90 ± 4.16 | NS |
| IVST (mm) | 10.20 ± 1.58 | 10.40 ± 1.47 | NS | 10.22 ± 1.58 | 10.20 ± 1.29 | NS |
| EF (%) | 57.70 ± 8.52 | 54.53 ± 9.07 | 0.000 | 57.45 ± 8.54 | 58.62 ± 9.48 | NS |
| Diagnosis | 0.030 | NS | ||||
| NSTEMI | 1648(79.8) | 108(87.8) | 1685(80.3) | 71(78.8) | ||
| STEMI | 417(20.1) | 15(12.1) | 413(19.6) | 19(21.1) | ||
SBP: systolic blood pressure; DBP: diastolic blood pressure; HR: heart rate; BMI: Body Mass Index; NSTEMI: non-ST-segment myocardial infarction; STEMI: ST-segment elevation myocardial infarction; TC: total cholesterol; TG: triglyeride; LDL: low density lipoprotein cholesterol; HDL: high density lipoprotein cholesterol; Cr: creatinine; BUN: blood urea nitrogen; ALT: alanine aminotransferase; AST: Aspartate transaminase; CK: creatine kinase; CKMB: creatine kinase MB isoenzyme; cTnT: Cardiac Troponin T; NT-proBNP: N-terminal pro-B-type natriuretic peptide; HbA1c: hemoglobin A1c; PLT: platelet; RDW: red blood cell distribution width; LVDd: left ventricular end-diastolic dimension; IVST: interventricular septal thickness; EF: ejection fraction; NS: not significant.