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Table 5 Multivariable logistic regression of factors associated with poor sleep quality

From: Prevalence and correlates of poor sleep quality among college students: a cross-sectional survey

  Estimate SE Wald P OR 95%CI
Age
  ≤ 20 −0.043 0.092 0.219 0.640 0.958 0.800–1.147
  > 20      1.000  
Gender
 Male 0.004 0.067 0.004 0.948 1.004 0.880–1.146
 Female      1.000  
Grade
 Freshman 0.421 0.136 9.645 0.002 1.523 1.168–1.987
 Sophomore 0.283 0.129 4.798 0.028 1.327 1.030–1.709
 Junior 0.029 0.123 0.055 0.815 1.029 0.809–1.308
 Senior and senior five     1.000  
Alcohol use
 yes 0.491 0.070 49.346 < 0.001 1.634 1.425–1.874
 no      1.000  
Study pressure of this academic year
 no −1.563 0.140 123.709 < 0.001 0.210 0.159–0.276
 smaller −1.249 0.134 87.531 < 0.001 0.287 0.221–0.373
 general −1.150 0.117 96.568 < 0.001 0.317 0.252–0.398
 larger −0.464 0.120 14.857 < 0.001 0.629 0.497–0.796
 great      1.000  
Days off from school(/month)
 0 −0.673 0.186 13.091 < 0.001 0.510 0.354–0.735
  < 1 −0.214 0.204 1.102 0.294 0.807 0.541–1.204
 1–2 −0.381 0.213 3.189 0.074 0.683 0.450–1.038
 3–4 0.044 0.269 0.027 0.870 1.045 0.617–1.770
  ≥ 5      1.000  
Self-injurious behaviors
 never −0.883 0.268 10.897 0.001 0.413 0.245–0.698
 Occasionally −0.389 0.302 1.666 0.197 0.678 0.375–1.224
 sometimes −0.988 0.370 7.123 0.008 0.372 0.180–0.769
 often      1.000  
Gambling behaviors
 yes 0.154 0.076 4.082 0.043 1.167 1.005–1.356
 no      1.000  
Exercise for more than 30 min (days/week)
 0 0.210 0.099 4.512 0.034 1.234 1.016–1.498
 1–2 −0.067 0.090 0.551 0.458 0.935 0.784–1.116
 3–4 −0.107 0.104 1.048 0.306 0.899 0.732–1.103
 5–7      1.000  
Family relationship
 Very harmonious −0.975 0.278 12.292 < 0.001 0.377 0.219–0.650
 Harmonious −0.748 0.278 7.225 0.007 0.473 0.274–0.817
 Neutral −0.698 0.290 5.783 0.016 0.498 0.282–0.879
 Disharmonious −0.191 0.372 0.264 0.608 0.826 0.398–1.714
 Highly disharmonious      1.000  
Communication with parents
 Substantial −0.646 0.265 5.969 0.015 0.524 0.312–0.880
 Often −0.106 0.148 0.513 0.474 0.899 0.672–1.203
 Neutral 0.223 0.096 5.371 0.020 1.249 1.035–1.508
 Rarely 0.077 0.084 0.827 0.363 1.080 0.915–1.274
 Never      1.000  
Satisfaction with paternal love
 Very satisfied 0.360 0.228 2.487 0.115 1.433 0.916–2.240
 Satisfied 0.615 0.202 9.227 0.002 1.849 1.244–2.749
 Neutral 0.134 0.120 1.253 0.263 1.144 0.904–1.448
 Dissatisfied −0.020 0.092 0.049 0.825 0.980 0.818–1.174
 Very dissatisfied      1.000  
Satisfaction with maternal love
 Very satisfied −0.499 0.278 3.238 0.072 0.607 0.352–1.046
 Satisfied −0.840 0.265 10.074 0.002 0.432 0.257–0.725
 Neutral −0.045 0.151 0.090 0.765 0.956 0.712–1.284
 Dissatisfied 0.016 0.091 0.030 0.863 1.016 0.850–1.214
 Very dissatisfied      1.000  
Relationship with classmates
 Very harmonious 0.412 0.317 1.686 0.194 1.509 0.811–2.809
 Harmonious 0.791 0.265 8.912 0.003 2.206 1.312–3.708
 Neutral 0.531 0.094 31.805 < 0.001 1.700 1.414–2.045
 Disharmonious 0.107 0.076 1.972 0.160 1.113 0.958–1.293
 Highly disharmonious      1.000  
Places often going with friends
 Gymnasium −0.261 0.079 10.914 0.001 0.770 0.659–0.899
 Bar/Karaoke hall/Song and dance hall 0.080 0.092 0.768 0.381 1.084 0.905–1.297
 Billiard hall −0.258 0.148 3.056 0.080 0.773 0.579–1.032
 Internet cafes −0.259 0.110 5.502 0.019 0.772 0.622–0.958
 Other      1.000  
  1. Note: df = 1