The impact of pain on quality of life in patients with osteoarthritis: a cross-sectional study from Palestine

Table 4 Multiple regression analysis of the characteristics with their quality of life (EQ-5D-Score)

Variables	Unstandardized coefficients		Standardized coefficients	T	P value¹	95.0% confidence interval for B		Collinearity statistics
Variables	B	Std. error	Beta	T	P value¹	Lower bound	Upper bound	VIF
Constant	0.915	0.090		10.206	0.000	0.738	1.092
Age	0.034	0.025	0.070	1.377	0.170	−0.015	0.083	1.342
Educational level	0.015	0.007	0.112	2.217	0.028	0.002	0.029	1.336
Occupation	0.002	0.007	0.011	0.234	0.815	−0.012	0.015	1.232
Trauma	−0.001	0.022	−0.003	− 0.051	0.959	− 0.044	0.041	1.436
Pain medications	−0.017	0.012	−0.068	−1.452	0.148	−0.040	0.006	1.146
Number of affected joints	−0.035	0.013	−0.123	−2.592	0.010	−0.061	−0.008	1.183
Duration of disease	−0.027	0.013	−0.102	−2.070	0.040	−0.052	−0.001	1.272
Number of comorbidities	−0.007	0.010	−0.036	−0.703	0.483	−0.026	0.012	1.393
Pain severity	−0.061	0.015	−.245	−4.110	< 0.001	−0.091	−0.032	1.872
Pain interference	−0.179	0.023	−0.437	−7.729	< 0.001	−0.225	−0.133	1.675
Percentage of relief by drugs	0.046	0.016	0.150	2.829	0.005	0.014	0.078	1.477

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