Variables (before or upon ED admission) | Patient number = 141 mean ± SD | Non-DNS group at one month from hospital discharge (patient n = 107) mean ± SD | DNS group at one month from hospital discharge (patient n = 34) mean ± SD | p value |
---|---|---|---|---|
Age (years) | 42 ± 21 | 41.7 ± 21.7 | 40.4 ± 15.5 | >.05 |
Sex (male) | 64 (45.3%) | 53 (49.5%) | 11 (32.3%) | >.05 |
Duration of exposure >6 hours | 54 (38.2%) | 36 (33.6%) | 18 (52.9%) | .03 |
Suicide attempt | 5 (3.5%) | 3 (2.8%) | 2 (5.8%) | >.05 |
Hb (g/dL) | 14 ± 1.6 | 14.1 ± 1.16 | 13.7 ± 1.9 | >.05 |
WBC (per microlitre) | 9.87 ± 3.7 | 9.100 ± 2.900 | 11.900 ± 4.900 | .004 |
Plt (per microlitre) | 234.300 ± 58.300 | 236.000 ± 61.700 | 228.000 ± 47.000 | >.05 |
Troponin I (ng/mL) (n = 43) | 0.72 ± 3.25 | 0.88 ± 3.88 (n = 30) | 0.33 ± 0.66 (n = 13) | >.05 |
CPK (U/L) (n = 127) | 255 ± 763 | 159 ± 221 (n = 97) | 572 ± 1506 (n = 30) | .01 |
Lactate (mmol/L) (n = 82) | 1.77 ± 1.46 | 1.77 ± 1.41 (n = 62) | 1.76 ± 1.34 (n = 20) | >.05 |
pH | 7.41 ± 0.07 | 7.40 ± 0.07 | 7.41 ± 0.07 | >.05 |
paCO2 (KPa) | 4.78 ± 0.87 | 4.82 ± 0.89 | 4.62 ± 0.74 | >.05 |
paO2 (KPa) | 15.33 ± 1.09 | 14.93 ± 7.34 | 16.53 ± 10.45 | >.05 |
GCS <9 | 15 (10.6%) | 6 (5.6%) | 9 (26.4%) | .002 |
Transient loss of consciousness | 75 (53.1%) | 53 (49.5%) | 22 (64.7%) | >.05 |
Seizures | 14 (9.9%) | 5 (4.6%) | 9 (26.4%) | .001 |
Systolic blood pressure <90 mmHg | 4 (2.8%) | 1 (0.9%) | 3 (8.8%) | .04 |
Postural instability | 37 (26.2%) | 26 (24.2%) | 11 (32.3%) | >.05 |
Headache | 79 (56%) | 60 (56%) | 19 (55.8%) | >.05 |
GCS between 14 and 9 | 29 (20.5%) | 26 (24.2%) | 3 (8.8%) | >.05 |
Severe metabolic acidosis (pH <7.2) | 11 (7.8%) | 6 (5.6%) | 5 (14.7%) | >.05 |
Dyspnea | 6 (4.2%) | 4 (3.7%) | 2 (5.8%) | >.05 |
Mean carboxyhemoglobin level at admission (%) | 26.3 ± 10 | 26 ± 10.2 | 26.4 ± 10.5 | >.05 |
Evidence of myocardial injury | 33 (23.4%) | 23 (21,4%) | 10 (29,4%) | >.05 |
HBO therapy | 55 (39%) | 44 (41.1%) | 11 (32.3%) | >.05 |