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. 2015 Jan-Feb;22(1):23–30. doi: 10.1155/2015/938930

I. Full multivariable logistic regression models for each categorical outcome, with waist-to-height ratio (WHR) and body mass index (BMI) as respective key predictors

Outcome: Obesity by BMI
Composite ICU mortality Six-month mortality
β SE OR 95% CI P β SE OR 95% CI P β SE OR 95% CI P
Intercept −0.19 0.33 0.83 0.57 −1.45 0.49 0.23 0.003 −0.95 0.41 0.39 0.02
BMI
  Obese −0.17 0.23 0.84 0.54–1.32 0.46 −0.40 0.30 0.67 0.38–1.20 0.18 −0.53 0.26 0.59 0.36–0.97 0.04
  Nonobese Ref Ref
Sex
  Male −0.35 0.23 0.70 0.45–1.10 0.13 −0.63 0.29 0.53 0.30–0.94 0.03 −0.57 0.25 0.57 0.35–0.93 0.02
  Female Ref Ref Ref
Age, years
  ≥70 0.38 0.35 1.46 0.73–2.93 0.28 1.03 0.52 2.80 1.00–7.82 0.049 1.99 0.44 7.35 3.13–17.23 <0.0001
  40–69 0.28 0.30 1.32 0.74–2.37 0.35 0.91 0.48 2.48 0.96–6.37 0.06 1.14 0.39 3.13 1.46–6.74 0.004
  <40 Ref Ref Ref
Diagnosis
  Trauma −0.24 0.29 0.79 0.45–1.40 0.42 −1.21 0.48 0.30 0.12–0.77 0.01 −0.92 0.35 0.40 0.20–0.79 0.008
  Surgical −0.07 0.27 0.94 0.55–1.58 0.80 −0.22 0.33 0.81 0.43–1.52 0.51 −0.29 0.29 0.75 0.43–1.31 0.32
  Medical Ref Ref Ref
Obesity according to WHR
Outcome: Composite ICU mortality Six-month mortality
β SE OR 95% CI P β SE OR 95% CI P β SE OR 95% CI P
Intercept −0.19 0.33 0.83 0.57 −1.55 0.49 0.21 .002 −0.99 0.41 0.37 0.01
WHR
  Obese −0.21 0.26 0.81 0.49–1.37 0.44 −0.14 0.32 0.87 0.46–1.64 0.66 −0.47 0.29 0.62 0.35–1.10 0.10
  Nonobese Ref Ref Ref
Sex
  Male −0.38 0.24 0.68 0.43–1.08 0.11 −0.62 0.29 0.54 0.30–0.96 0.04 −0.62 0.26 0.54 0.32–0.89 0.02
  Female Ref Ref Ref
Age, years
  ≥70 0.39 0.36 1.47 0.73–2.96 0.28 0.98 0.52 2.67 0.96–7.46 0.06 1.98 0.43 7.21 3.08–16.87 <0.0001
  40–69 0.28 0.30 1.32 0.74–2.37 0.35 0.86 0.48 2.37 0.92–6.10 0.07 1.12 0.39 3.08 1.43–6.60 0.004
  <40 Ref Ref Ref
Diagnosis
  Trauma −0.24 0.29 0.79 0.44–1.39 0.41 −1.18 0.48 0.31 0.12–0.78 0.01 −0.91 0.35 0.40 0.20–0.79 0.009
  Surgical −0.08 0.27 0.92 0.55–1.56 0.77 −0.23 0.32 0.79 0.42–1.50 0.47 −0.32 0.28 0.73 0.42–1.27 0.26
  Medical Ref Ref Ref
Obesity according to BMI
Outcome: Reintubation Ventilator-associated pneumonia ICU readmission
β SE OR 95% CI P β SE OR 95% CI P β SE OR 95% CI P
BMI models
  Intercept −1.57 0.45 0.21 .001 −1.61 0.54 0.20 0.003 −3.85 0.84 0.02 <0.0001
BMI
  Obese 0.28 0.34 1.32 0.68–2.55 0.41 −0.21 0.41 0.81 0.36–1.83 0.61 −0.72 0.41 0.49 0.22–1.08 0.08
  Nonobese Ref Ref Ref
Sex
  Male −0.30 0.33 0.74 0.39–1.42 0.37 0.07 0.41 1.07 0.48–2.37 0.87 0.56 0.42 1.76 0.77–4.02 0.18
  Female Ref Ref Ref
Age, years
  ≥70 −0.08 0.48 0.92 0.36–2.34 0.87 0.16 0.60 1.17 0.36–3.80 0.79 1.77 0.83 5.89 1.16–30.0 0.03
  40–69 −0.59 0.42 0.55 0.24–1.27 0.16 −0.39 0.47 0.68 0.27–1.70 0.41 1.49 0.78 4.44 0.97–20.4 0.06
  <40 Ref Ref Ref
Diagnosis
  Trauma −0.01 0.44 0.99 0.42–2.32 0.98 0.81 0.47 2.24 0.90–5.62 0.08 −0.25 0.56 0.78 0.26–2.34 0.65
  Surgical 0.09 0.39 1.10 0.51–2.37 0.81 −0.56 0.56 0.57 0.19–1.71 0.32 0.53 0.42 1.70 0.74–3.87 0.21
  Medical Ref Ref Ref
Obesity according to WHR
Outcome: Reintubation Ventilator-associated pneumonia ICU readmission
β SE OR 95% CI P β SE OR 95% CI P β SE OR 95% CI P
Intercept −1.64 0.46 0.19 0.0003 −1.58 0.55 0.21 0.004 −3.73 0.83 0.02 <0.0001
WHR
  Obese 0.56 0.37 1.75 0.85–3.60 0.13 −0.26 0.52 0.77 0.28–2.15 0.62 −1.48 0.63 0.23 0.07–0.79 0.02
  Nonobese Ref Ref Ref
Sex
  Male −0.19 0.34 0.82 0.42–1.62 0.58 0.02 0.41 1.02 0.45–2.31 0.96 0.36 0.43 1.44 0.62–3.33 0.39
  Female Ref Ref Ref
Age, years
  ≥70 −0.16 0.48 0.85 0.33–2.19 0.74 0.18 0.61 1.20 0.37–3.96 0.76 1.81 0.83 6.13 1.22–30.91 0.03
  40–69 −0.64 0.43 0.53 0.23–1.21 0.13 −0.40 0.46 0.67 0.27–1.65 0.38 1.53 0.77 4.62 1.02–20.15 0.048
  <40 Ref Ref Ref
Diagnosis
  Trauma −0.001 0.44 1.00 0.42–2.35 1.00 0.79 0.47 2.21 0.88–5.55 0.09 −0.31 0.56 0.73 0.24–2.20 0.58
  Surgical 0.13 0.39 1.14 0.53–2.45 0.75 −0.58 0.56 0.56 0.19–1.67 0.30 0.46 0.42 1.58 0.69–3.61 0.28
  Medical Ref Ref Ref