Table A9  Results of Multivariate Regression Analysis Models, with Quality of Sleep as Dependent Variable and Feeling of Uncertainty and Sociodemographic Characteristics as Independent Variables.
95% Confidence Interval
Predictor  Estimate  SE  Z   p  Odds Ratio  Lower  Upper
Intercept  −1.874  0.383  −4.893  <0.001  0.154  0.0725  0.325
Sex
 Male–Female  −0.651  0.252  −2.577  0.010  0.522  0.3181  0.856
Age class
 Aged–Adult  −0.816  0.398  −2.051  0.040  0.442  0.2028  0.964
 Middle-aged adult  −0.144  0.188  −0.769  0.442  0.866  0.5994  1.250
Education level
 High–Low  −1.119  0.351  −3.191  0.001  0.327  0.1643  0.649
 Medium–Low  −0.770  0.341  −2.259  0.024  0.463  0.2375  0.903
Uncertainty
 Yes–No  1.000  0.206  4.853  <0.001  2.717  1.8146  4.069
Note. Estimates represent the log odds of “good sleep quality category” versus “poor sleep quality category”.