Table 2.
Characteristics of study population on ICU admission and outcomea
| Characteristics | Overall population | Group 1 (< 45 yr) | Group 2 (45-54 yr) | Group 3 (55 to 64 yr) | Group 4 (65 to 74 yr) | Group 5 (≥75 yr) |
|---|---|---|---|---|---|---|
| (N = 111) | (n = 22) | (n = 27) | (n = 22) | (n = 23) | (n = 17) | |
| SAP, mmHg | 124 [107 to 146] | 117 [107 to 140] | 124 [113 to 138] | 137 [121 to 158] | 124 [106 to 142] | 120 [104 to 146] |
| Heart rate, beats/min | 91 [77 to 107] | 94 [80 to 112] | 92 [83 to 108] | 93 [80 to 110] | 85 [74 to 93] | 82 [61 to 101] |
| Glasgow Coma Scale score | 3 [3 to 3] | 3 [3 to 3] | 3 [3 to 3] | 3 [3 to 3] | 3 [3 to 3] | 3 [3 to 3] |
| Base deficit, mmol/L | 6.4 [3 to 10.4] | 5.8 [2.6 to 11.4] | 6.9 [4.4 to 11.4] | 5.5 [3 to 10.9] | 6.9 [1.4 to 10.4] | 6.6 [3.3 to 9.2] |
| PaO2/FiO2 ratio, mmHg | 253 [174 to 337] | 234 [192 to 319] | 294 [190 to 348] | 205 [141 to 283] | 248 [153 to 327] | 255 [208 to 325] |
| Catecholamine infusion | 62 (56) | 14 (64) | 14 (52) | 12 (55) | 14 (61) | 8 (47) |
| Creatinine, μmol/L | 111 [86 to 131] | 98 [83 to 124] | 114 [83 to 144] | 112 [87 to 122] | 126 [101 to 160] | 109 [95 to 124] |
| SAPS II* | 60 [52 to 68] | 53 [48 to 62] | 56 [51 to 66] | 57 [48 to 61] | 62 [59 to 73] | 72 [63 to 79] |
| Coronary angiography* | 91 (82) | 21 (95) | 25 (93) | 20 (91) | 16 (70) | 9 (53) |
| PCI in patients with coronary angiography | 46 (51) | 7 | 14 | 12 | 9 | 4 |
| MTH 32°C to 34°C* | 78 (70) | 19 (86) | 21 (78) | 17 (77) | 13 (57) | 8 (47) |
| In-hospital survival** | 60 (54) | 14 (64) | 14 (52) | 14 (64) | 14 (61) | 4 (24) |
aSAP: systolic arterial pressure; PaO2/FiO2 ratio, ratio of partial pressure of arterial oxygen to the fraction of inspired oxygen; SAPS II: Simplified Acute Physiology Score II; PCI: percutaneous coronary intervention; MTH: mild therapeutic hypothermia. *P < 0.05 between-group comparisons. **P = 0.06 between-group comparisons. Numbers between brackets are percentages or 25th to 75th percentiles.