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Table 3 Laboratory data at admission of patients with methanol intoxication, stratified according to status of renal damage as AKI or non-AKI (N = 50)

From: Acute kidney injury and the risk of mortality in patients with methanol intoxication

Variable AKI patients
(n = 33)
Non-AKI patients
(n = 17)
All patients
(N = 50)
P value
Blood urea nitrogen, mg/dL 22.4 ± 18.1 12.4 ± 4.3 18.8 ± 15.4 0.035*
Creatinine, mg/dL (admission) 2.51 ± 1.24 0.87 ± 0.17 1.97 ± 1.28 0.000***
Creatinine, mg/dL (peak) 3.23 ± 2.00 1.12 ± 0.94 2.54 ± 1.99 0.000***
Methanol level, mg/dL 33.1 ± 77.2 64.5 ± 75.5 43.8 ± 77.4 0.176
Ethanol level, mg/dL 48.6 ± 57.0 71.6 ± 125.3 56.4 ± 85.8 0.390
Arterial blood gas     
pH 7.055 ± 0.232 7.306 ± 0.190 7.141 ± 0.248 0.000***
pCO2, mmHg 26.5 ± 14.1 36.9 ± 11.1 30.0 ± 13.9 0.011*
pO2, mmHg 110.3 ± 60.0 112.8 ± 58.7 111.2 ± 59.0 0.890
Bicarbonate, mmol/L 8.7 ± 7.3 18.8 ± 6.8 12.2 ± 8.6 0.000***
Base excess, mmol/L −17.9 ± 10.0 −7.4 ± 9.1 −13.5 ± 10.9 0.001**
Osmolarity, mOsm/kg H2O 341.0 ± 42.1 329.3 ± 26.0 336.9 ± 37.4 0.351
Osmolarity gap, mOsm/kg H2O 50.5 ± 84.2 37.3 ± 28.4 44.7 ± 65.0 0.624
Anion gap, mmol/L 33.4 ± 14.8 16.3 ± 7.3 27.2 ± 15.0 0.000***
Calcium, mEq/L 7.7 ± 0.9 7.5 ± 0.9 7.7 ± 0.9 0.526
Sodium, mEq/L 138.1 ± 6.1 141.7 ± 3.1 139.3 ± 5.5 0.029*
Potassium, mEq/L 4.6 ± 1.1 3.5 ± 0.6 4.2 ± 1.1 0.001*
Chloride, mEq/L 96.8 ± 8.9 106.9 ± 3.5 100.6 ± 8.8 0.000***
Amylase, mg/dL 137.8 ± 84.0 294.3 ± 477.4 182.5 ± 250.7 0.310
Lipase, mg/dL 179.1 ± 206.4 39.5 ± 14.0 154.8 ± 194.4 0.199
Albumin, g/dL 3.05 ± 1.01 3.57 ± 0.69 3.26 ± 0.91 0.297
Aspartate aminotransferase, U/L 303.7 ± 507.1 50.3 ± 37.9 245.2 ± 455.6 0.240
Alanine aminotransferase, U/L 96.4 ± 122.1 32.0 ± 24.7 73.9 ± 103.6 0.060
Random glucose, mg/dL 223.6 ± 145.5 126.6 ± 34.1 183.0 ± 121.8 0.026*
White blood cell count, 1000/μL 16.2 ± 9.7 11.6 ± 6.1 14.6 ± 8.8 0.077
Haemoglobin, g/dL 13.2 ± 3.1 14.0 ± 1.6 13.5 ± 2.7 0.311
Platelet count, 1000/μL 192.2 ± 109.6 242.9 ± 68.4 209.4 ± 99.8 0.089
  1. *P < 0.05, **P < 0.01, and ***P < 0.001