. 2021 Dec 8;9(12):1703. doi: 10.3390/healthcare9121703

Table 5.

Multiple regression analysis between demographic characteristics and mental health component in control and osteoarthritis groups.

Demographic Characteristics		Control Group (n = 30) Adj-R² = 0.164				OA Group (n = 60) Adj-R² = 0.123
		Unstandardized Coefficients		β	p-Value	Unstandardized Coefficients		β	p-Value
		B	95% CI	β	p-Value	B	95% CI	β	p-Value
Age		0.018	−0.989, 1.025	0.009	0.970	−0.600	−2.493, 1.293	−0.138	0.527
Sex = Female (RG = Male)		−9.358	−23.398, 4.682	−0.419	0.178	−0.307	−15.110, 14.497	−0.007	0.967
Height		0.315	−0.804, 1.435	0.171	0.560	−0.042	−1.046, 0.962	−0.012	0.933
Weight		−0.023	−0.736, 0.690	−0.017	0.947	0.213	−0.618, 1.043	0.083	0.609
History of chronic disease		−7.019	−15.914, 1.876	−0.399	0.114	4.268	−5.541, 14.077	0.162	0.386
Low-income households (RG = Not low)		2.824	−7.864, 13.513	0.102	0.584	−5.399	−17.635, 6.837	−0.124	0.379
Marital status (RG = Unmarried)	Widowed	−6.853	−26.750, 13.044	−0.274	0.477	−18.213	−41.568, 5.143	−0.420	0.123
Marital status (RG = Unmarried)	Married	−6.877	−22.260, 8.507	−0.299	0.359	−15.722	−38.642, 7.199	−0.342	0.174
Monthly disposable income		2.504	−2.469, 7.478	0.269	0.303	9.987	2.160, 17.814	0.343	0.014
Education (RG = Education ≤ 9 years)	9–12 years	−4.797	−15.981, 6.387	−0.209	0.378	−3.888	−20.576, 12.800	−0.085	0.641
Education (RG = Education ≤ 9 years)	>12 years	−8.771	−22.259, 4.716	−0.335	0.188	−2.318	−25.588, 20.953	−0.027	0.842
Number of insurances policies		−12.708	−27.714, 2.299	−0.507	0.092	−14.289	−25.427, −3.151	−0.331	0.013

Statistically significant mean difference (p < 0.05). B: Regression coefficient; CI: confidence intervals; β: standardized coefficients; Adj-R²: adjusted R squared.