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Table 3 Logistic regression models: odd ratios with 95% confidence intervals

From: Quality of life before intensive care unit admission is a predictor of survival

 

OR

95% CI

P value

Model A

   

   Sex

1.61

1.03 to 2.52

0.037

   Age

1.06

1.04 to 1.09

<0.001

   GHa

0.62

0.49 to 0.77

<0.001

Model B

   

   Sex

1.69

1.07 to 2.68

0.026

   Age

1.07

1.04 to 1.09

<0.001

   PCS

0.97

0.95 to 0.99

<0.001

   MCS

0.96

0.94 to 0.98

<0.001

Model C

   

   Sex

1.74

1.11 to 2.74

0.016

   Age

1.06

1.04 to 1.09

<0.001

   APACHE II

0.09

1.05 to 1.13

<0.001

Model D

   

   Sex

1.80

1.13 to 2.86

0.013

   Age

1.06

1.04 to 1.09

<0.001

   GHa

0.60

0.48 to 0.76

<0.001

   APACHE II

1.09

1.06 to 1.14

<0.001

Model E

   

   Sex

1.89

1.17 to 3.05

0.009

   Age

1.06

1.04 to 1.09

<0.001

   PCS

0.97

0.95 to 0.99

<0.001

   MCS

0.96

0.94 to 0.98

0.001

   APACHE II

1.09

1.05 to 1.13

<0.001

  1. aGeneral Health (GH) is item 1 from the SF-36: range 1 (poor) to 5 (excellent). The ranges for PCS and MCS are both 0 to 100. Model A included the general health item of the 36-item Short-form (SF-36), age and sex. Model B included the physical component score (PCS), mental component score (MCS), age and sex. Model C included the Acute Physiology and Chronic Health Evaluation (APACHE) II score, age and sex. Model D included the general health item of the SF-36, APACHE II score, age and sex. Model E included PCS, MCS, APACHE II score, age and sex. CI, confidence interval; OR, odds ratio.
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