Table 1 Baseline characteristics
|  | Normal group (n = 233) | Moderate group (n = 108) | RI group (n = 95) | χ 2 /F | p value |
|---|---|---|---|---|---|
Age (years) | 61.11 ± 8.42 | 64.08 ± 6.91a | 75.57 ± 7.53ab | 114.59 | <0.001 |
BMI (kg/m2) | 24.51 ± 4.49 | 24.03 ± 3.98 | 23.95 ± 5.08 | 0.721 | 0.486 |
Killip ≥ 2 | 21 (9.01) | 10 (9.26) | 20 (21.05)ab | 10.297 | 0.006 |
HR (bpm) | 71.58 ± 23.40 | 73.29 ± 19.17 | 78.05 ± 25.18 | 2.823 | 0.061 |
Current smoker (%) | 96 (41.20) | 47 (43.52) | 45 (47.37) | 1.056 | 0.59 |
Diabetes (%) | 69 (29.61) | 41 (37.96) | 46 (48.42)a | 10.686 | 0.005 |
Hypertention (%) | 75 (32.19) | 48 (44.44) | 50 (52.63)a | 13.145 | 0.001 |
Hyperlipidemia (%) | 79 (33.91) | 36 (33.33) | 29 (30.53) | 0.799 | 0.671 |
Previous MI (%) | 15 (6.44) | 9 (8.33) | 2 (2.11) | 3.697 | 0.157 |
Previous PCI (%) | 11 (4.72) | 5 (4.63) | 4 (4.21) | 0.078 | 1 |
Previous stroke | 2 (0. 86) | 3 (2.78) | 4 (4.21) | 4.336 | 0.087 |
Peripheral vasculardisease (%) | 3 (1.29) | 1 (0.95) | 1 (1.05) | 0.261 | 1 |
Anterior and/or Lateral wall (%) | 113 (57.08) | 45 (41.67) | 53 (55.79) | 4.039 | 0.133 |
Inferior and/or Posterior wall | 105 (45.06) | 60 (55.56) | 40 (42.11) | 4.437 | 0.109 |
Maximum ST segment elevation (mm) | 3.16 ± 1.27 | 2.95 ± 1.08 | 3.11 ± 1.33 | 1.072 | 0.345 |
Q wave | 96 (41.20) | 38 (35.19) | 41 (42.11) | 1.573 | 0.455 |
Symptom to door time (min) | |||||
 Median (25–75th) | 189.46 (130.51–392.26) | 170.13 (110.50–337.12) | 180.11 (104.39–387.25) | 0.978 | 0.613 |
Door to balloon time (min) | |||||
 Median (25–75th) | 123.42 (91.35–210.92) | 135.56 (80.49–198.55) | 142.6 (98.53–228.11) | 3.071 | 0.215 |
Door to needle time (min) | |||||
 Median (25–75th) | 58.21 (28.20–110.83) | 50.55 (31.02–126.02) | 63.48 (32.01–130.44) | 4.335 | 0.114 |
Left ventricular ejection fraction (%) | 50.11 ± 13.60 | 48.92 ± 14.02 | 44.38 ± 13.05ab | 6.051 | 0.003 |
IABP use | 3 (1.29) | 5 (4.63) | 1 (1.05) | 3.882 | 0.143 |
Successful PCI | 166 (71.24) | 73 (67.59) | 57 (60.00) | 3.92 | 0.141 |
Successful thrombolysis | 40 (17.17) | 21 (19.44) | 18 (18.95) | 0.314 | 0.855 |
Serum creatinine (mmol/l) | 78.12 ± 31.13 | 85.47 ± 44.90 | 116.67 ± 59.01ab | 28.612 | <0.001 |
Peak troponin (ng/ml) | 31.06 ± 16.28 | 30.19 ± 18.73 | 45.33 ± 15.26ab | 28.253 | <0.001 |
Hospitalization days | 8.53 ± 4.78 | 8.36 ± 5.11 | 12.05 ± 5.74ab | 18.401 | <0.001 |