Diabetes Non-diabetes
  Variables OR (95% CI) P value OR (95% CI) P value
Model 1 Gender 2.17 (1.16 ~ 4.09) 0.016 3.70 (1.18 ~ 11.57) 0.024
  Age > 65y 2.30 (1.35 ~ 3.92) 0.002 3.79 (1.39 ~ 10.32) 0.009
  Non-hypertension 2.05 (1.19 ~ 3.54) 0.010 2.89 (1.07 ~ 7.81) 0.037
  Dyslipidemia 1.95 (1.17 ~ 3.25) 0.010 3.09 (1.17 ~ 8.18) 0.023
  Smoke 2.25 (1.27 ~ 3.99) 0.006 1.26 (0.46 ~ 3.47) 0.657
  Multivessel disease 1.57 (0.79 ~ 3.10) 0.197 2.46 (0.58 ~ 10.42) 0.221
  GFRMDRD< 90 mL/min/1.73m2 2.86 (1.71 ~ 4.79) < 0.001 3.24 (1.11 ~ 9.49) 0.032
Model 2 Gender 2.05 (1.10 ~ 3.81) 0.024 3.07 (1.01 ~ 9.34) 0.048
  Age > 65y 2.07 (1.20 ~ 3.57) 0.009 3.00 (1.06 ~ 8.52) 0.039
  Non-hypertension 2.03 (1.19 ~ 3.46) 0.010 2.78 (1.04 ~ 7.47) 0.042
  Dyslipidemia 2.04 (1.23 ~ 3.38) 0.006 3.37 (1.28 ~ 8.86) 0.014
  Smoke 2.35 (1.32 ~ 4.18) 0.004 1.03 (0.39 ~ 2.74) 0.953
  Multivessel disease 1.67 (0.86 ~ 3.27) 0.131 2.86 (0.62 ~ 13.14) 0.177
  GFREPI< 90 mL/min/1.73m2 2.36 (1.35 ~ 4.14) 0.003 4.50 (1.15 ~ 17.58) 0.031
Model 3 Gender 1.78 (0.92 ~ 3.44) 0.089 3.73 (1.21 ~ 11.5) 0.022
  Age > 65y 1.95 (1.11 ~ 3.42) 0.020 3.88 (1.43 ~ 10.58) 0.008
  Non-hypertension 2.40 (1.34 ~ 4.28) 0.003 2.45 (0.93 ~ 6.47) 0.070
  Dyslipidemia 2.04 (1.19 ~ 3.49) 0.009 4.18 (1.56 ~ 11.16) 0.004
  Smoke 2.47 (1.34 ~ 4.56) 0.004 1.12 (0.42 ~ 3.01) 0.820
  Multivessel disease 1.74 (0.87 ~ 3.51) 0.120 2.58 (0.63 ~ 10.64) 0.190
  GFRCYS< 90 mL/min/1.73m2 6.21 (3.53 ~ 10.91) < 0.001 3.30 (1.20 ~ 9.04) 0.020
GFRMDRD, GFREPI and GFRCYS are included in model 1, 2 and 3, respectively.
GFR,  glomerular filtration rate
Table 2: Logistic regression analyses for poor collateralzation in diabetic and non-diabetic patients.