. 2020 Sep 19;10(9):142. doi: 10.3390/bs10090142

Table 4.

Hierarchical Multiple Linear Regression: predictors of the Psoriasis Disability Index (Final Model).

Model	R	R ²	R² Adjusted	Standardized Error of the Estimate	R² Change	F Change	df1	df2	Significant F Change
1	0.168	0.028	0.015	7.270	0.028	2.116	1	73	0.150
2	0.721	0.520	0.470	5.332	0.492	11.454	6	67	<0.001
3	0.835	0.698	0.651	4.328	0.178	12.558	3	64	<0.001
			B	Error	β	t	p
1	(Constant)		13.012	3.253		−4.001	<0.001
	Years of education		−0.929	0.639	−0.168	−1.455	0.150
2	(Constant)		−2.256	4.275		−0.528	0.599
	Years of education		−0.889	0.474	−0.160	−1.874	0.065
	Other diseases		−0.146	1.303	−0.010	−0.112	0.911
	Family history of psoriasis		1.790	1.271	0.122	1.408	0.164
	Disease severity perception		−1.267	1.104	−0.112	−1.148	0.255
	Satisfaction with treatment		−0.175	1.369	−0.011	−0.128	0.899
	Anxiolytics/antidepressants		1.307	1.491	0.079	0.877	0.384
	Impact in social life		6.182	0.830	0.719	7.452	<0.001
3	(Constant)		−0.613	7.159		−0.086	0.932
	Years of education		−0.897	0.393	−0.162	−2.282	0.026
	Other diseases		−1.590	1.102	−0.108	−1.443	0.154
	Family history of psoriasis		0.958	1.089	0.065	0.880	0.382
	Disease severity perception		−0.963	0.903	−0.085	−1.067	0.290
	Satisfaction with treatment		0.984	1.144	0.062	0.861	0.393
	Anxiolytics/antidepressants		0.318	1.240	0.019	0.257	0.798
	Impact in social life		3.160	0.886	0.367	3.567	0.001
	Body image (total)		0.228	0.062	0.433	3.694	<0.001
	Acceptance Action (total)		0.119	0.083	0.134	1.444	0.153
	Self-compassion (total)		−0.039	0.048	−0.083	−0.799	0.427

Notes: R = multiple correlation coefficient; R² = explanation factor (how much of the variation is explained by the model); R² adjusted = percentage of variance that would not be explained by the model if it were derived from the population instead of a sample; df1 = numerator degrees of freedom; df2 = denominator degrees of freedom; β = slope gradient; F = analysis of variance ANOVA; t = informs whether the value of β is different from 0; p = significance value; bold = statistically significant differences.