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Table 3 Vitamin D concentration as the outcome based on univariable and multivariable linear regression analyses (beta-estimates with 95% confidence levels) – unselected sample without Turkish background

From: Serum vitamin D levels in Berliners of Turkish descent –a cross-sectional study

Effect (Vitamin D level)  
  Univariable Analysis Multivariable Analysisa
Variable Name (N used for univariable Model) Beta Estimates p Beta Estimates n = 109 p
Age (linear variable) (N = 111) −0.05 0.64 Not included in final model
Sex: male vs. female (N = 111) 4.5 0.165 6.2 0.059
Education:
< 10 years vs ≥10 years (N = 111)
−4.5 0.392 Not included in final model
BMI: normal weight vs. overweight/obesity (N = 109) 6.6 0.05 7.8 0.018
Physical activity:
≥150 min/d vs < 150 min/d (N = 111)
4.5 0.164 Not included in final model
Smoking Status: never−/ex-smokers vs. smokers (N = 111) −1.8 0.589 Not included in final model
Chronic disease: at least one vs none (N = 111) −1.0 0.779 Not included in final model
Alcohol consumption: never or moderate vs. hazardous (N = 111) −1.4 0.782 Not included in final model
  1. aStepwise backward elimination (based on p = 0.2)