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Table 3 Stepwise multiple-regression analyses of factors affecting toe flexor and handgrip strength

From: Age-related reduction and independent predictors of toe flexor strength in middle-aged men

  Regression coefficient SE β P R2 change (%)
Toe flexor strengtha
 Constant 1.967 3.889   0.613  
 LBM 0.277 0.036 0.252 < 0.001 4.1
 Age −0.128 0.021 −0.173 < 0.001 3.2
 Albumin 2.328 0.629 0.097 < 0.001 0.8
 Drinking habit 0.364 0.132 0.072 0.006 0.5
 FBG −0.026 0.011 −0.067 0.016 0.5
 DBP 0.047 0.018 0.073 0.008 0.3
 FM −0.145 0.057 −0.086 0.011 0.4
 Sleeping time −0.342 0.165 −0.053 0.038 0.3
 Exercise habit 0.682 0.330 0.053 0.039 0.3
Handgrip strengthb
 Constant 11.486 3.243   0.225  
 LBM 0.474 0.032 0.458 < 0.001 15.1
 Age −0.092 0.017 −0.133 < 0.001 2.0
 Albumin 2.301 0.559 0.102 < 0.001 0.8
 FM −0.176 0.049 −0.111 < 0.001 0.8
 Drinking habit 0.397 0.117 0.083 0.001 0.7
  1. SE Standard error
  2. a Excluded variables: TG, LDL-C, HDL-C and smoking habit. R2 = 0.104, adjusted R2 = 0.098, P < 0.001
  3. b Excluded variables: TG, LDL-C, HDL-C, exercise habit, sleeping time, smoking habit, DBP, and FBG. R2 = 0.193, adjusted R2 = 0.190, P < 0.001