Variable | Normal cTni (n = 252) | Elevated cTnI (n = 62) | P | % missing g values* |
---|---|---|---|---|
Age (years) | 83 ± 11 | 85 ± 12 | 0.18 | 0% |
Age >80 years | 179/252 (71) | 199/262 (76) | 0.23 | 0% |
Male sex | 109/252 (43) | 87/262 (33) | 0.02 | 0% |
Katz index | 6 (3 to 6) | 5 (2 to 6) | 0.006 | 20.4% |
Living in an institution | 48/252 (19) | 63/262 (24) | 0.24 | 0% |
Transportation to the hospital in an ambulance | 241/252 (96) | 253/262 (96) | 1.00 | 0% |
Pre-existing disease | ||||
Hypertension | 100/249 (40) | 86/256 (33) | 0.14 | 1.8% |
Coronary artery disease | 57/249 (23) | 89/256 (35) | 0.004 | 1.8% |
Heart failure | 29/249 (12) | 30/256 (12) | 1.00 | 1.8% |
Diabetes | 32/249 (13) | 35/256 (14) | 0.79 | 1.8% |
Cancer | 30/249 (12) | 12/256 (5) | 0.003 | 1.8% |
Chronic medications | ||||
Diuretics | 85/247 (34) | 92/247 (37) | 0.57 | 3.9% |
CEI or AII I | 51/247 (21) | 60/247 (24) | 0.39 | 3.9% |
Beta-blockers | 39/247 (16) | 27/247 (11) | 0.15 | 3.9% |
Calcium inhibitors | 38/247 (15) | 45/247 (18) | 0.47 | 3.9% |
Nitrates | 35/247 (14) | 61/247 (24) | 0.004 | 3.9% |
Inotropic drugs | 25/247 (10) | 35/247 (14) | 0.21 | 3.9% |
Antiarrhythmic drugs | 33/247 (13) | 19/247 (8) | 0.06 | 3.9% |
Anticoagulant or antiaggregants | 110/247 (44) | 101/247 (41) | 0.47 | 3.9% |
Statines | 20/247 (8) | 14/247 (6) | 0.37 | 3.9% |
Clinical signs | ||||
Core temperature (°C) | 39.9 ± 1.1 | 40.6 ± 1.3 | <0.001 | 0% |
Core temperature >40°C | 105/252 (42) | 176/262 (67) | <0.001 | 0% |
SBP (mmHg) | 120 ± 37 | 104 ± 42 | <0.001 | 0% |
SBP <100 mmHg | 31/214 (12) | 74/254 (29) | <0.001 | 0% |
Glasgow coma scale | 15 (13 to 15) | 12 (6 to 15) | <0.001 | 10.0% |
Glasgow coma scale <12 | 41/227 (18) | 118/237 (50) | <0.001 | 10.0% |
Oxygen saturation (%) | 93 (90 to 96) | 92 (88 to 95) | 0.01 | 26.5% |
Oxygen saturation <90% † | 36/173 (21) | 66/205 (32) | 0.015 | 26.5% |
Biological variables (blood) | ||||
Leucocytes (G/L) | 12,128 ± 8,914 | 13,834 ± 6,902 | 0.017 | 3.2% |
Plasma sodium (mmol/L) | 137 ± 9 | 138 ± 11 | 0.08 | 1.8% |
Hypernatremia (>145 mmol/L) | 33/250 (13) | 49/255 (19) | 0.07 | 1.8% |
Creatinine (μmol/L) | 119 ± 66 | 155 ± 85 | <0.001 | 1.9% |
Creatinine >120 μmol/L | 93/247 (38) | 155//257 (64) | <0.001 | 1.9% |
Bicarbonates (mmol/L) | 24.6 ± 4.0 | 22.1 ± 4.5 | <0.001 | 3.5% |
Arterial pH | 7.42 ± 0.05 | 7.39 ± 0.10 | 0.006 | 89.5% |
Infection | 93/248 (37) | 79/259 (30) | 0.11 | 1.4% |
Therapeutic cooling | 181/252 (72) | 195/262 (74) | 0.55 | 0% |
Admitted to ICU | 9/252 (4) | 26/262 (10) | 0.005 | 0% |
Critically ill | 47/247 (19) | 134/259 (52) | <0.001 | 1.6% |
Risk score | 8 (6 to 11) | 12 (8 to 16) | <0.001 | 15.9% |
Risk score categories § | ||||
- low | 63/228 (28) | 27/238 (11) | ||
- intermediate | 128/228 (56) | 101/238 (42) | <0.001 | 9.3% |
- high | 37/228 (16) | 110/238 (46) |