Table 2—

Hierarchical stepwise linear regression: predictors of depression in patients with diabetic peripheral neuropathy

Model IModel IIModel IIIModel IVModel VModel VI
Demographic/disease variables
    Type 2 diabetes0.13*0.12*
    Diabetes duration0.03−0.010.01−0.00−0.010.00
    Has partner0.
    U.S. study site−0.08−0.13−0.16−0.15−0.16−0.16
    Number of diabetes complications0.11*0.09*
Number of comorbidities0.12*0.12*
Objective diabetic neuropathy severity
Diabetic neuropathy symptoms:
    NeuroQoL Reduced feeling in feet0.180.160.11*0.08
    NeuroQoL Pain0.
    NeuroQoL Unsteadiness0.300.280.230.18
Perceptions of diabetic neuropathy and its treatment
    IPQ-R Treatment control−0.12−0.13−0.14
    IPQ-R Episodic-unpredictable timeline0.160.140.13
NeuroQoL Restrictions in ADLs0.180.08
NeuroQoL Changes in social self-perception0.23
  • Data are standardized regression coefficients (β).

  • *

    * P < 0.05;

  • P < 0.01;

  • P < 0.001.