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Table 4 Acid-base parameters in association with length of stay in days

From: The hidden secrets of a neutral pH—blood gas analysis of postoperative patients according to the Stewart approach

pH

> 7.35

< 7.35

 

LOS (days)

13 ± 10

15 ± 11

P = 0.166

BE

> − 3 mmol/L

< − 3 mmol/L

 

LOS (days)

13 ± 10

14 ± 10

P = 0.736

SIDa

> 37 mmol/L

< 37 mmol/L

 

LOS (days)

12 ± 10

15 ± 10

P = 0.015

AG

< 12 mmol/L

> 12 mmol/L

 

LOS (days)

11 ± 9

16 ± 12

P < 0.001

SIG

< 2 mmol/L

> 2 mmol/L

 

LOS (days)

13 ± 11

15 ± 11

P = 0.089

Albumin

> 30 g/L

< 30 g/L

 

LOS (days)

10 ± 8

16 ± 12

P < 0.001

  1. LOS length of stay, BE base excess, SIDa apparent strong ion difference, AG anion gap corrected for albumin, SIG strong ion gap. Data presented as mean ± SD