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Table 6 Multiple logistic regression analysis assessing the association of hospital mortality with APACHE III predicted hospital mortality, intensity of treatment, admission source, and BMI subgroup in 8,450 non-operative patients

From: Underweight is independently associated with mortality in post-operative and non-operative patients admitted to the intensive care unit: a retrospective study

 

Odds Ratio (95% CI)

P-value

BMI

  

< 18.5

1.51 (1.13–2.01)

0.0051

18.5–24.9

1.00

 

25.0–29.9

1.02 (0.87–1.20)

0.8022

30.0–39.9

0.98 (0.82–1.17)

0.7979

≥ 40.0

0.86 (0.63–1.20)

0.3967

Predicted mortality

1.045 (1.042–1.048)

<0.0001

Intensity of treatment

  

Low-risk monitor

0.39 (0.31–0.51)

<0.0001

High-risk monitor

0.87 (0.73–1.03)

0.1033

Active

1.00

 

Admission source

  

Other hospital

0.99 (0.75–1.32)

0.9596

ER/Direct

1.00

 

Same hospital

1.43 (1.24–1.65)

<0.0001

  1. *Four patients were excluded from this analysis because of missing data. CI = Confidence interval; RR = recovery room; OR = operating room; ER = emergency room; Direct = direct admission from the outpatient clinic