Table 4.

Multivariate linear regression analysis of outpatient expenditures of patients with complications

Factors	Partial regression coefficient	Standardized partial regression coefficient	t	P	Variance inflation factor
Constant term	8.412		374.580	0.000
Retinopathy	0.366	0.142	22.650	0.000	1.578
Diabetic nephropathy	0.525	0.257	5.322	0.000	2.478
Diabetic foot	0.736	0.384	15.986	0.000	2.439
Cardiac-cerebrovascular disease	0.562	0.229	8.487	0.000	1.617
Neuropathy	0.469	0.215	6.473	0.000	2.378
Arteriosclerosis in lower extremity	0.475	0.219	6.837	0.000	1.925