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Table 3 Multiple linear regression analysis on variables associated with bone mineral density

From: Risk factors for bone mineral density at the calcaneus in 40–59 year-old male workers: A cross-sectional study in Korea

  Coefficient Standard error t P*
Age (year) -0.002 0.000 -5.522 <0.001
Education level (<12 years vs. ≥ 12 years) 0.001 0.004 0.301 0.763
Physical activity (≤ 2/week vs. ≥ 3/week) 0.017 0.003 4.895 <0.001
WHR -0.796 0.093 -8.569 <0.001
BMI (kg/m2) 0.023 0.001 17.033 <0.001
Drinking status (never vs. ever) -0.002 0.006 -0.259 0.795
Smoking status (never vs. ever) -0.018 0.004 -4.317 <0.001
  1. *P < 0.05 by multiple linear regression analysis, R2 = 0.21