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Table 3 Single and multiple regression analyses of baseline HbA1c and ∆HbA1c levels (at 3 months) using the deviation from the approximate linear correlation coefficient as the dependent variable

From: Effect of sitagliptin on blood glucose control in patients with type 2 diabetes mellitus who are treatment naive or poorly responsive to existing antidiabetic drugs: the JAMP study

  Single regression analysis Multiple regression analysis
Independent variable Regression coefficient Lower Upper P-value Partial regression coefficient Lower Upper P-value
Limit Limit Limit Limit
Age 0.006 0.002 0.011 0.008 0.004 −0.001 0.009 0.149
Sex (male) −0.022 −0.140 0.096 0.715     
Smoking habit 0.015 −0.121 0.151 0.83     
Drinking habit −0.037 −0.152 0.078 0.523     
Duration of diabetes mellitus −0.004 −0.012 0.005 0.377     
Body mass index −0.015 −0.028 −0.001 0.029 −0.009 −0.023 0.005 0.207
Mean blood pressure −0.008 −0.013 −0.002 0.005 −0.004 −0.008 0.001 0.095
Diet/exercise group 0.097 −0.027 0.22 0.126     
Low-dose glimepiride group 0.054 −0.124 0.232 0.555     
Medium-dose glimepiride group −0.264 −0.472 −0.056 0.013 −0.249 −0.452 −0.045 0.017§
Biguanide group −0.073 −0.228 0.081 0.351     
Thiazolidine group 0.082 −0.159 0.323 0.504     
αGI group 0.028 −0.308 0.364 0.871     
Multi-drug coadministration group −0.008 −0.131 0.115 0.9     
  1. p < 0.05, single regression analysis
  2. §p < 0.05, multiple regression analysis