Table 5.

Univariate and multivariate regression analysis for fatigue severity scale.

	Univariate regression analysis							Multivariate regression analysis
	Model	Unstandardized coefficients		Standardized coefficients		P-value		Unstandardized coefficients		Standardized coefficients		P-value
		B	Std. Error	Beta	t			B	Std. Error	Beta	t
1	GDS	.115	.011	.517	10.613	<.0001**	1	.100	.011	.450	9.197	.000**
2	Duration of diabetes	.046	.011	.244	4.421	<.0001**	2	.022	.010	.114	2.249	.025*
3	Hemoglobin	–.315	.057	–.298	–5.480	<.0001**	3	–.173	.053	–.164	–3.261	.001**
4	Vitamin D	–.029	.011	–.154	–2.732	.007**	4	–.032	.009	–.170	–3.639	.000**
5	FSG	.004	.001	.206	3.692	<.0001**

Dependent variable: FSS.

FSG = fasting serum glucose, FSS = fatigue severity scale, GDS = geriatric depression scale.