Table A2  Results of Multivariate Regression Analysis Models, with Quality of Sleep as Dependent Variable and Change in PA Habits and Sociodemographic Characteristics as Independent Variables.
95% Confidence Interval
Predictor  Estimate  SE  Z   p  Odds Ratio  Lower  Upper
Intercept  −1.245  0.352  −3.536  <0 .001  0.288  0.144  0.574
Sex
 Male–Female  −0.788  0.258  −3.061  0.002  0.455  0.274  0.753
Age class
 Aged–Adult  −0.985  0.452  −2.178  0.029  0.374  0.154  0.906
 Middle-aged–Adult  −0.104  0.190  −0.544  0.586  0.902  0.621  1.309
Education level
 High–Low  −1.268  0.342  −3.709  <0.001  0.281  0.144  0.550
 Medium–Low  −0.962  0.335  −2.871  0.004  0.382  0.198  0.737
Change in PA habits
 Improved–No change  −0.595  0.532  −1.120  0.263  0.551  0.195  1.563
 Worsened–No change  0.483  0.183  2.638  0.008  1.621  1.132  2.321
Legend PA = Physical activity.