Table A8  Results of Multivariate Regression Analysis Models, with Quality of Sleep as Dependent Variable and Feeling of Loneliness and Sociodemographic Characteristics as Independent Variables.
95% Confidence Interval
Predictor  Estimate  SE  Z   p  Odds Ratio  Lower  Upper
Intercept  −1.354  0.374  −3.620  <0.001  0.258  0.124  0.538
Sex
 Male–Female  −0.836  0.264  −3.161  0.002  0.434  0.258  0.728
Age class
 Aged–Adult  −0.815  0.424  −1.923  0.054  0.443  0.193  1.016
 Middle-aged adult  −0.140  0.192  −0.730  0.466  0.869  0.596  1.267
Education level
 High–Low  −1.153  0.368  −3.130  0.002  0.316  0.153  0.650
 Medium–Low  −0.886  0.362  −2.448  0.014  0.412  0.203  0.838
Loneliness
 Yes–No  1.122  0.199  5.635  <0.001  3.070  2.079  4.536