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Table 2 Multivariable Model Results for SF12 Physical and Mental Component Scores Measured One Month Post-ICU Discharge (N = 110)*

From: Disability in activities of daily living, depression, and quality of life among older medical ICU survivors: a prospective cohort study

Explanatory Variables

Physical Component

(PCS)

Mental Component

(MCS)

Explanatory Variables

β (95% CI)

P-value

β (95% CI)

P-value

Any Impairment in Activities of Daily Living (ADL)

-7.11 (-10.43, -3.80)

<0.0001

-3.02 (-6.59, 0.55)

0.10

ICU Length of Stay

-0.40 (-1.43, 0.63)

0.44

-0.40 (-0.70, 1.51)

0.47

Intubation

0.50 (-4.60, 3.60)

0.81

0.82 (-3.59, 5.23)

0.71

Age

0.07 (-0.12, 0.27)

0.49

0.10 (-0.11, 0.32)

0.35

APACHE II Score on ICU admission

-0.06 (-0.36, 0.23)

0.67

-0.05 (-0.26, 0.36)

0.74

Charlson Co-morbidity Index

-0.44 (-1.41, 0.55)

0.37

0.72 (-0.33, 1.76)

0.18

Education

-0.20 (-0.81, 0.42)

0.53

-0.03 (-0.69, 0.63)

0.93

Male Gender

0.27 (-2.92, 3.46)

0.87

0.79 (-2.64, 4.23)

0.64

Nonwhite Race

-0.44 (-5.04, 4.15)

0.85

-1.28 (-6.23, 3.66)

0.61

Depression

-3.62 (-6.86, -0.38)

0.03

-8.71 (-12.20, -5.22)

<0.0001

Days of Delirium

0.51 (-0.53, 1.56)

0.33

-0.47 (-1.60, 0.65)

0.40

  1. * Abbreviations: CI, Confidence Interval; ICU, Intensive Care Unit; APACHE, Acute Physiology and Chronic Health Evaluation
  2. Age, APACHE II Score, Charlson Co-morbidity Index and Education are all continuous variables. ADLs were measured at 1-month post-ICU discharge.
  3. R2 = 0.26 for Physical Component and R2 = 0.28 for Mental Component
  4. Adjusted R2 = 0.17 for Physical Component and Adjusted R2 = 0.20 for Mental Component