Table 1.
Clinicodemographic characteristics of all patients
| Characteristics | Median (minimum–maximum) |
Overall | Post hoc analysis p value |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (group 1) (n=206) | (group 2) (n=154) | (group 3) (n=61) | (group 4) (n=67) | (1) vs (2) | (1) vs (3) | (1) vs (4) | (2) vs (3) | (2) vs (4) | (3) vs (4) | ||
| Age (years) | 64 (32–98) | 62 (29–91) | 63 (41–91) | 63 (28–92) | 0.8381 | ||||||
| Sex | 0.2205 | ||||||||||
| Male | 162 (78.64) | 131 (85.06) | 45 (73.77) | 52 (77.61) | |||||||
| Female | 44 (21.36) | 23 (14.94) | 16 (26.23) | 15 (22.39) | |||||||
| Systolic BP (mm Hg) | 125 (43–223) | 131 (59–268) | 130 (68–220) | 133 (65–202) | 0.4672 | ||||||
| Diastolic BP (mm Hg) | 79.5 (9–133) | 82.5 (43–184) | 82 (40–122) | 80 (43–125) | 0.1289 | ||||||
| Pulse rate (bpm) | 79.5 (34–150) | 80 (35–145) | 82 (43–134) | 81 (34–156) | 0.7674 | ||||||
| Diabetic mellitus | 67 (32.52) | 48 (31.17) | 21 (34.43) | 25 (37.31) | 0.8251 | ||||||
| Hypertension | 115 (55.83) | 75 (48.7) | 26 (42.62) | 41 (61.19) | 0.1028 | ||||||
| Chronic kidney disease | 11 (5.34) | 8 (5.19) | 1 (1.64) | 4 (5.97) | 0.666 | ||||||
| Stroke | 12 (5.83) | 11 (7.14) | 2 (3.28) | 3 (4.48) | 0.7574 | ||||||
| Variant angina | 3 (1.46) | 1 (0.65) | 1 (1.64) | 1 (1.49) | 0.8251 | ||||||
| Stable angina | 5 (2.43) | 4 (2.6) | 2 (3.28) | 2 (2.99) | 0.9306 | ||||||
| Myocardial infarction | 12 (5.83) | 12 (7.79) | 1 (1.64) | 4 (5.97) | 0.4066 | ||||||
| Heart failure | 3 (1.46) | 3 (1.95) | 1 (1.64) | 1 (1.49) | 0.9534 | ||||||
| S/P PTCA | 17 (8.25) | 19 (12.34) | 4 (6.56) | 10 (14.93) | 0.2487 | ||||||
| S/P CABG | 1 (0.49) | 1 (0.65) | 1 (1.64) | 1 (1.49) | 0.4873 | ||||||
| Current smoker | 81 (39.32) | 74 (48.05) | 20 (32.79) | 35 (52.24) | 0.0535 | ||||||
| Hypercholesterolaemia | 17 (8.25) | 11 (7.14) | 3 (4.92) | 6 (8.96) | 0.8339 | ||||||
| Family history of CAD | 0.0122* | 0.0096 | 0.5918 | 0.6816 | 0.0217 | 0.2422 | 0.4972 | ||||
| No | 201 (97.57) | 141 (91.56) | 61 (100) | 65 (97.01) | |||||||
| Yes | 5 (2.43) | 13 (8.44) | 0 (0) | 2 (2.99) | |||||||
| Height (cm) | 167 (140–186) | 168 (140–183) | 167 (146–178) | 168 (140–190) | 0.4864 | ||||||
| Weight (kg) | 65 (43–96) | 69.3 (37.5–120) | 65.3 (17.2–86) | 68.3 (36.1–133) | 0.0417* | 0.0334 | 0.3858 | 0.1586 | 0.0189 | 0.8591 | 0.0657 |
| Creatine kinase | 143.5 (20–5514) | 127 (14–10 560) | 122 (53–8400) | 110 (25–2132) | 0.222 | ||||||
| Creatine kinase-MB | 4.43 (0.56–619.4) | 3.32 (0.7–638) | 5.29 (0.92–600) | 3.5 (0.76–172.8) | 0.2161 | ||||||
| Troponin-T | 0.06 (0–10) | 0.03 (0–9.86) | 0.06 (0–10) | 0.04 (0–18.22) | 0.0959 | ||||||
| Mode of transport | 0.3446 | ||||||||||
| Emergency medical service | 105 (50.97) | 88 (57.14) | 38 (63.33) | 37 (55.22) | |||||||
| Private vehicles | 101 (49.03) | 66 (42.86) | 22 (36.67) | 30 (44.78) | |||||||
| Killip class | 0.3609 | ||||||||||
| I | 125 (60.68) | 104 (67.53) | 34 (56.67) | 42 (62.69) | |||||||
| II | 28 (13.59) | 13 (8.44) | 8 (13.33) | 13 (19.4) | |||||||
| III | 23 (11.17) | 20 (12.99) | 7 (11.67) | 7 (10.45) | |||||||
| IV | 30 (14.56) | 17 (11.04) | 11 (18.33) | 5 (7.46) | |||||||
| CPR in ED | 0.1134 | ||||||||||
| No | 201 (97.57) | 154 (100) | 59 (96.72) | 66 (98.51) | |||||||
| Yes | 5 (2.43) | 0 (0) | 2 (3.28) | 1 (1.49) | |||||||
| Chest pain | 0.8045 | ||||||||||
| No | 23 (11.17) | 13 (8.44) | 5 (8.2) | 6 (8.96) | |||||||
| Yes | 183 (88.83) | 141 (91.56) | 56 (91.8) | 61 (91.04) | |||||||
| PCI lesion | 0.191 | ||||||||||
| LAD | 94 (46.08) | 65 (42.76) | 39 (65) | 31 (46.27) | |||||||
| RCA | 77 (37.75) | 52 (34.21) | 15 (25) | 24 (35.82) | |||||||
| LCX | 9 (4.41) | 12 (7.89) | 1 (1.67) | 4 (5.97) | |||||||
| More than two vessels | 24 (11.76) | 23 (15.13) | 5 (8.33) | 8 (11.94) | |||||||
The patients were divided into four groups: group 1 (patients who arrived during working hours on a weekday), group 2 (patients who arrived during off-hours on a weekday), group 3 (patients who arrived during working hours on a weekend) and group 4 (patients who arrived during off-hours on a weekend).
BP, blood pressure; CABG, coronary artery bypass graft; CAD, coronary artery disease; CPR, cardiopulmonary resuscitation; ED, emergency department; LAD, left anterior descending coronary artery; LCX, left circumflex coronary artery; PCI, percutaneous coronary intervention; PTCA, percutaneous transluminal coronary angioplasty; RCA, Right coronary artery.
*p<0.05.