Table 5

Multiple linear regression and ordered logistic analysis for diabetic retinopathy severity

VariableVIFModel 1Model 2
Linear regressionOrdered logistic regression
βSDPβSDPOR
IL-1B1.480.0360.0200.4410.1571.554
IL-21.56−0.0280.020−0.4610.1630.631
IL-42.47−0.0190.019−0.0290.0710.971
IL-63.770.0080.014*−0.0450.0540.956
IL-81.87−0.0100.012−0.0620.0660.940
IL-102.09−0.0430.028−0.1560.1120.855
IL-122.870.0010.015−0.1300.0760.878
IL-172.82−0.0320.013*−0.0510.0540.951
TNF2.400.1520.0380.8980.2242.454
IFN1.530.0150.0540.1020.2801.107
DX1.950.0110.017−0.0150.0800.985
HbA1c3.350.4080.1460.9010.4732.462
BMI3.060.2150.0700.8790.3002.410
Creatinine2.980.6660.258*3.9801.595**53.527
Adj. R20.8570.637
P>F/P>χ20.0000.000
  • P>F used for linear regression and p>χ2 for the ordered logistic regression.

  • *P<0.01

  • †P<0.05

  • BMI, body mass index; DX, time of diagnostic; HbA1c, haemoglobin A1c; IFN, interferon; IL, interleukin ; TNF, tumour necrosis factor; VIF, variance inflation factor.