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Table 1 Baseline demographics and admitting diagnostic category by group

From: Lactate versus non-lactate metabolic acidosis: a retrospective outcome evaluation of critically ill patients

Characteristic Metabolic acidosis: predominant anion No metabolic acidosis
  Lactate SIG Chloride  
n 239 204 105 303
Age (years) 55.3 60.2 60.8 56.4
Male sex 141 (59) 106 (52) 54 (51) 169 (56)
Admitting diagnostic group     
   Hepatic 73 (31) 31 (15) 13 (12) 49 (16)
   Infectious 36 (15) 43 (21) 18 (17) 51 (17)
   Cardiac 30 (13) 21 (10) 10 (10) 33 (11)
   General surgery 18 (8) 10 (5) 9 (9) 43 (14)
   Respiratory 14 (6) 25 (12) 8 (8) 26 (9)
   Other medical 23 (10) 28 (14) 11 (10) 29 (10)
   Trauma 10 (4) 7 (3) 17 (16) 21 (7)
   Oncology 11 (5) 16 (8) 8 (8) 18 (6)
   Neurological 10 (4) 9 (4) 5 (5) 11 (4)
   Vascular surgery 8 (3) 3 (1) 2 (2) 15 (5)
   Other surgical 6 (3) 11 (5) 4 (4) 4 (1)
   Unknown 0 0 0 3 (1)
  1. SIG, strong ion gap. Numbers in parentheses are percentages.