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Table 2 Multivariate analysis: Logistic regression with backward elimination selection AIC

From: Low serum vitamin B12 levels are associated with degenerative rotator cuff tear

  First step
AIC = 102.03
Last step
AIC = 92.344
OR 95% CI P-value OR 95% CI P-value
Sex 10.26 1.88–76.12 0.012 7.96 1.9–41.57 0.008
Age (years) 1.19 1.05–1.38 0.013 1.18 1.05–1.36 0.009
DM 7.74 1–71.65 0.054 8.74 1.24–76.79 0.035
HTN 0.9 0.21–3.66 0.887    
CVA 0.37 0.01–30.94 0.633    
Glucose (mg/dL) 0.97 0.94–1 0.107 0.97 0.93–0.99 0.031
Mg (mg/dL) 0.3 0.01–7.03 0.484    
Ca (mg/dL) 0.67 0.22–1.96 0.468    
P (mg/dL) 0.38 0.11–1.08 0.091 0.39 0.12–1.01 0.073
Zn (mg/dL) 1.02 0.96–1.09 0.526    
HCY (μmol/L) 0.88 0.63–1.18 0.433    
Vit D (ng/mL) 0.89 0.8–0.97 0.011 0.89 0.82–0.96 0.006
Vit B12 (pg/mL) 0.99 0.99–1 0.026 0.99 0.99–1 0.044
Folate (ng/mL) 1.06 0.94–1.21 0.384    
BMD (g/cm2) 0.6 0.3–1.14 0.129 0.61 0.33–1.08 0.101
  1. AIC Akaike Information Criterion, OR Odds ratio, SE Standard error, CI Confidence interval