Table 4: Multiple stepwise regression analysis showing variables independently associated with serum CA19-9.

Independent variables enter the modelβS.E.MStandardized β 95% CI for β (lower limit-upper limit)

HbA1c0.0680.0050.43313.223<0.0010.058 to 0.078
Type of diabetes−0.1390.043−0.099−3.2350.001−0.223 to −0.055
TC0.0280.0090.0913.020.0030.010 to 0.046
CP−0.0190.007−0.084−2.5470.011−0.033 to −0.004

The parameters which significantly correlated with serum CA19-9 level showed in Table 3 were selected to enter into the model.