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Table 7 Multivariable analysis, including sensitivity analysis: independent association of FS with mortality

From: Pre-admission functional status impacts the performance of the APACHE IV model of mortality prediction in critically ill patients

Cohort

OR (95% CI)

P value

Entire cohort

 FS2 vs FS1

2.18 (1.84–2.57)

<0.0001

 FS3 vs FS1

1.99 (0.34–2.96)

0.0006

Medical patients

 FS2 vs FS1

2.20 (1.83–2.65)

0.0001

 FS3 vs FS1

2.07 (1.38–3.10)

0.0004

Surgical patients

 FS2 vs FS1

2.04 (1.28–3.26)

0.0029

 FS3 vs FS1

1.60 (0.26–9.85)

0.6149

Trauma patients

 FS2 vs FS1

2.20 (0.96–5.08)

0.0640

 FS3 vs FS1a

N/A

 
  1. Multivariable analysis includes Acute Physiology and Chronic Health Evaluation IV predicted mortaltiy. FS functional status. aOnly two trauma patients had FS3
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