Table 2.

Result of multivariate linier regression (N = 546)

Variable	B	SE	β	T	p	R	R2	F
Constant term	7.910	5.969		1.325	0.000	0.444	0.197	10.806
Age	0.124	0.057	0.095	2.182	0.030*
Gender	− 2.092	1.296	− 0.075	− 1.614	0.107
Marital status	− 0.118	1.235	− 0.004	− 0.096	0.924
Education	3.492	1.523	0.101	2.292	0.022*
Occupation	− 0.003	0.294	0.000	− 0.010	0.992
Income level	1.794	2.165	0.035	0.829	0.408
Comorbidities	− 1.195	1.055	− 0.048	− 1.132	0.258
Diabetes duration	0.885	0.566	0.067	1.563	0.119
Peripheral neuropathy	− 0.122	0.245	− 0.023	− 0.501	0.617
Current foot ulcer	3.218	1.706	0.082	1.886	0.060
Diabetes distress	0.114	0.032	0.164	3.580	0.000**
Depression	− 0.110	0.088	− 0.056	− 1.250	0.212
Foot-care knowledge	14.331	2.207	0.276	6.493	0.000**
Family support	19.948	4.622	0.179	4.315	0.000**

*p < 0.05, **p < 0.01