Table 4 Laboratory analysis of patients with charcoal burning suicide, stratified according to status of renal damage as acute kidney injury (creatinine 
1.2 mg/dL) or non-acute kidney injury (creatinine < 1.2 mg/dL) group (N = 126).
1.2 mg/dL) or non-acute kidney injury (creatinine < 1.2 mg/dL) group (N = 126).From: Acute Kidney Injury Predicts Mortality after Charcoal Burning Suicide
Variable | Acute kidney injury (N = 49) | Non-acute kidney injury (N = 77) | P value |
|---|---|---|---|
Vital signs | |||
Systolic blood pressure (mmHg) | 116.4 ± 32.8 | 121.9 ± 26.8 | 0.308 |
Diastolic blood pressure (mmHg) | 69.2 ± 22.3 | 73.5 ± 18.6 | 0.257 |
Heart rate (/minute) | 102.2 ± 27.3 | 92.0 ± 23.3 | 0.03* |
White blood count (/mm3) | 19847.1 ± 9180.8 | 15112.0 ± 12834.5 | 0.027* |
Polymorphs (%) | 82.6 ± 12.9 | 81.6 ± 10.9 | 0.620 |
C reactive protein (mg/L) | 65.7 ± 82.0 | 57.8 ± 90.6 | 0.778 |
Hemoglobin (g/dL) | 15.3 ± 2.3 | 14.2 ± 2.2 | 0.008** |
Hematocrit (%) | 44.1 ± 6.0 | 41.2 ± 5.7 | 0.009** |
Platelet count (103/mm3) | 232.7 ± 80.8 | 230.9 ± 61.2 | 0.888 |
Blood urea nitrogen (mg/dL) | 31.2 ± 33.7 | 11.3 ± 2.8 | <0.001*** |
Creatinine (mg/dL) | 2.7 ± 2.4 | 0.9 ± 0.24 | <0.001*** |
Creatine kinase (MB) (ng/mL) | 651.2 ± 2187.5 | 29.5 ± 87.61 | 0.052 |
Creatine kinase (total) (U/L) | 63010.5 ± 11317.0 | 8664.7 ± 1291.7 | 0.011* |
Myoglobin (ng/mL) | 24012.9 ± 59481.9 | 1305.3 ± 5343.1 | 0.022* |
Urine myoglobin (ng/mL) | 1125308.1 ± 1402720.7 | 206308.1 ± 459525.7 | 0.208 |
Troponin I (ng/mL) | 5.4 ± 7.5 | 1.8 ± 4.9 | 0.003** |
Aspartate aminotransferase (U/L) | 404.5 ± 966.5 | 72.2 ± 93.1 | 0.005** |
Alanine aminotransferase (U/L) | 200.4 ± 400.5 | 49.0 ± 44.4 | 0.016* |
Alkaline phosphatase (U/L) | 67.3 ± 23.1 | 55.8 ± 37.7 | 0.365 |
Total bilirubin (mg/dL) | 1.2 ± 1.0 | 0.5 ± 0.2 | 0.030* |
Albumin (g/dL) | 3.3 ± 1.1 | 3.5 ± 0.6 | 0.536 |
Calcium (mg/dL) | 7.9 ± 1.1 | 8.2 ± 0.6 | 0.278 |
Phosphate (mg/dL) | 3.9 ± 1.9 | 2.8 ± 0.9 | 0.032* |
Sodium (mmol/L) | 140.7 ± 4.8 | 140.7 ± 2.7 | 0.983 |
Potassium (mmol/L) | 6.8 ± 17.1 | 4.5 ± 5.1 | 0.311 |
Arterial blood gas | |||
pH | 7.3 ± 0.1 | 7.4 ± 0.6 | < 0.001*** |
PCO2 (mmHg) | 35.1 ± 8.8 | 34.9 ± 5.3 | 0.878 |
PO2 (mmHg) | 241.0 ± 153.6 | 227.2 ± 137.5 | 0.610 |
HCO3 (mmol/L) | 18.6 ± 5.1 | 21.8 ± 3.5 | <0.001** |
SaO2 (%) | 95.6 ± 9.9 | 95.7 ± 11.7 | 0.967 |
Urine benzodiazepine, n (%) | 8 (16.3%) | 16 (20.8%) | 0.371 |
Urine ethanol, n (%) | 1 (2.0%) | 7 (9.1%) | 0.125 |
Urine amphetamine, n (%) | 3 (6.1%) | 2 (2.6%) | 0.143 |
Urine morphine, n (%) | 2 (4.1%) | 0 (0.0%) | 0.047* |
Globus pallidus necrosis on imaging, n (%) | 20 (40.8%) | 20 (26.0%) | 0.218 |
