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Table 4 Crude and adjusted HR for death by Clinical Frailty Scale score categories in patients younger than 65 years old

From: A prospective multicenter cohort study of frailty in younger critically ill patients

CFS category

Unadjusted HR

95 % CI

p Value

Adjusted HRa

95 % CI

p Value

Fit (CFS score 1-3)

1.0

–

–

1.0

–

–

Vulnerable (CFS score 4)

3.67

1.55–8.69

0.003

2.89

1.19–7.02

0.019

Mild frailty (CFS score 5)

2.82

0.95–8.38

0.063

2.54

0.82–7.90

0.107

Moderate to severe frailty (CFS score 6–8)

4.93

1.91–12.73

0.001

4.41

1.62–12.06

0.004

  1. CFS Clinical Frailty Scale
  2. aAdjusted by sex, Elixhauser comorbidity score, Acute Physiology and Chronic Health Evaluation II score, primary diagnostic criteria, and hospital type (tertiary care/academic vs. community hospital)
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