Table 2—

Background data for the 176 diabetic patients with normal ABI classified into three subgroups based on resistive index and total flow volume at the popliteal artery

Normal groupBorderline groupReduced group
Resistive index0.975 ± 0.0221.038 ± 0.0181.055 ± 0.020
total flow volume (ml/min)98.8 ± 17.672.5 ± 13.140.4 ± 8.6
n806333
Sex (male/female)47/3333/3023/10
Age (years)60.3 ± 6.461.1 ± 6.561.7 ± 6.2
BMI (kg/m2)23.9 ± 3.424.3 ± 3.822.7 ± 2.4
Duration of diabetes (years)13.9 ± 7.714.0 ± 9.415.4 ± 8.8
Treatment (D/OHD/I)2/35/437/20/360/12/21
FPG (mmol/l)7.96 ± 1.927.88 ± 2.118.99 ± 3.03
HbA1c (%)8.9 ± 1.68.7 ± 1.78.9 ± 1.9
TC (mmol/l)4.97 ± 0.885.11 ± 0.914.87 ± 0.96
HDL cholesterol (mmol/l)1.16 ± 0.361.27 ± 0.371.25 ± 0.41
TGs (mmol/l)1.54 ± 0.851.47 ± 0.781.24 ± 0.50
sBP (mmHg)127 ± 10134 ± 14*138 ± 10
dBP (mmHg)70 ± 873 ± 1071 ± 11
ABI1.16 ± 0.121.16 ± 0.091.12 ± 0.05
Smokers (%)35 (44)23 (37)11 (33)
CVR-R (%)2.2 ± 1.22.0 ± 1.12.2 ± 1.2
Retinopathy (%)41 (51)41 (65)24 (73)
Nephropathy (%)31 (39)30 (48)22 (67)
  • Data are means ± SD or n (%). D, diet; OHD, oral hypoglycemic drugs; I, insulin. The 80 patients with both normal resistive index and normal flow volume and the 33 patients in whom both these parameters were abnormal are the normal and reduced groups, respectively. The remaining 63 patients comprise the borderline group.

  • *

    * P < 0.01,

  • P < 0.001 vs. the normal group.