Table 3.

Multivariable Analysis of QOL score and its components.

Predictors	Un stand. β	Stand. β	95%CI lower upper		p-Value
Linear regression; dependent variable: QOL overall
Hypertension	−17.241	−0.128	−30.166	−4.317	0.009
Gender	−14.485	−0.111	−23.323	−5.648	0.037
Age	−0.388	−0.095	−0.752	−0.024	<0.001
Education (University)	18.065	0.134	8.451	27.68	<0.001
Regular sport	15.937	0.109	6.362	25.513	0.001
Number of comorbidities	−8.083	0.120	−14.184	−1.982	0.009
Mood disorder	−17.241	−0.121	−58.011	−16.661	<0.001
Frequency of drugs/day	−11.602	−0.186	−18.673	−4.531	0.001
Linear regression; dependent variable: physical component (PCS)
Hypertension	−2.074	−0.144	−5.292	−1.332	0.001
Gender	−2.555	−0.114	−4.115	−0.995	0.001
Age	−0.117	−0.168	−0.173	−0.061	<0.001
Education (University)	2.415	0.105	0.934	3.897	0.001
Regular sport	3.461	0.139	2.002	4.921	<0.001
Working hours	1.830	0.760	0.192	3.467	0.076
No cigarette/day	−0.053	−0.066	−1.020	−0.005	0.031
Presence of comorbidity	−3.631	−0.166	−5.385	−1.878	<0.001
Mood disorder	−3.250	−0.062	−6.435	−0.660	0.045
Frequency of drugs/day	−2.074	−0.195	−3.139	−1.010	<0.001
Linear regression; dependent variable: mental component (MCS)
Regular sport	1.932	0.077	0.091	3.774	0.04
Smoking waterpipe	−2.555	−0.081	−4.908	−0.202	0.033
Drinking coffee	−3.084	−0.094	−5.498	−0.671	0.012
Mood disorder	−7.582	−0.143	−11.502	−3.663	<0.001
Frequency of drugs/day	−1.940	−0.181	−2.746	−1.134	<0.001

CI: confidence interval, p < 0.05 is considered significant, β: regression coefficient.