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Table 2 Biologically plausible models to test the association of admission 25-hydroxyvitamin D level with non-home discharge destination in surgical intensive care unit patients (n = 300)

From: Admission vitamin D status is associated with discharge destination in critically ill surgical patients

Covariate OR (95 % CI)
25OHD (continuous variable)
OR (95 % CI)
25OHD (<20 vs. ≥20 ng/mL)
Age (years) 1.01 (0.98–1.04) 1.00 (0.98–1.03)
Sex
 Female
 Male 0.81 (0.36–1.83) 1.08 (0.51–2.31)
Race
 Non-white
 White 1.57 (0.96–2.56) 2.12 (0.52–8.68)
BMI (kg/m2) 2.07 (0.58–8.47) 0.97 (0.91–1.02)
SES
 Low
 Moderate 1.09 (0.38–3.09) 1.08 (0.39–3.02)
 High 1.07 (0.36–3.18) 0.92 (0.32–2.65)
Patient type
 Emergent
 Non-emergent 1.73 (0.32–9.32) 1.66 (0.32–8.66)
APACHE II 1.33 (1.22–1.45) 1.32 (1.22–1.43)
Hospital LOS (days) 1.18 (1.11–1.25) 1.18 (1.11–1.25)
Vitamin D supplementation (IU/day)   
 <1000
 ≥1000 to <4000 0.56 (0.17–1.83) 0.23 (0.08–0.67)
25OHD (ng/mL) 0.88 (0.82–0.95) 2.74 (1.23–6.14)
  1. () represents each referent variable
  2. Statistically significant variables are highlighted in italic
  3. OR odds ratio, CI confidence interval, BMI body mass index, SES socioeconomic status, APACHE II acute physiology and chronic health evaluation II, LOS length of stay, 25OHD 25-hydroxyvitamin D