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Table 1 Clinical, epidemiological and outcome data

From: Severe hyperlactatemia with normal base excess: a quantitative analysis using conventional and Stewart approaches

  Low base excess group Normal base excess group P value
n (%) 134 (80) 34 (20)  
Age (years) 63 ± 19 68 ± 14 0.15
Gender, male (%) 49 48 0.88
APACHE II score 16 ± 11 15 ± 8 0.41
APACHE II predicted mortality (%) 31 ± 27 26 ± 21 0.33
Actual mortality (%) 19 17 0.53
McCabe score 1.8 ± 0.7 1.8 ± 0.8 0.62
SOFA score 5 ± 5 4 ± 3 0.16
Medical/surgical admission (%) 47 82 0.0002
Type of surgical admission    
Elective (%) 34 15 <0.03
Emergency (%) 15 3 0.06
Trauma (%) 3 0 0.31
Transferred from    
Emergency department (%) 40 71 <0.002
General ward (%) 11 3 0.14
Time to intensive care unit admission (hours) 3 (1 to 5) 2 (2 to 5) 0.90
Shock (%) 46 24 0.02
Chronic obstructive pulmonary disease (%) 4 38 <0.0001
Sepsis (%) 23 21 0.75
Stroke 15 6 0.09
Mechanical ventilation (%) 40 35 0.22
Total bilirubin (mg%) 1.1 ± 1.2 1.1 ± 1.7 0.65
Plasma urea (mg%) 46 ± 31 54 ± 32 0.24
Plasma creatinine (mg%) 1.3 ± 0.7 1.1 ± 0.5 0.26
  1. APACHE, Acute Physiologic and Chronic Health Evaluation; SOFA, Sepsis-related Organ Failure Assessment.