Table A1 Results of Multivariate Regression Analysis Models, with Quality of Sleep as Dependent Variable and Financial Problems and Sociodemographic Characteristics as Independent Variables. 95% Confidence Interval Predictor Estimate SE Z p Odds Ratio Lower Upper Intercept −1.403 0.358 −3.923 <0 .001 0.246 0.122 0.496 Sex  Male–Female −0.840 0.264 −3.184 0.001 0.432 0.258 0.724 Age class  Aged–Adult −0.864 0.452 −1.911 0.056 0.421 0.174 1.023  Middle-aged–Adult −0.141 0.191 −0.738 0.460 0.869 0.598 1.262 Education level  High–Low −1.073 0.350 −3.065 0.002 0.342 0.172 0.679  Medium–Low −0.913 0.344 −2.656 0.008 0.401 0.205 0.787 Financial problems  Many–None 1.940 0.376 5.156 <0 .001 6.962 3.329 14.556  Some–None 0.556 0.199 2.788 0.005 1.743 1.179 2.576