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Table 2 Univariate logistic regression analysis of lifestyle factors with sleep quality

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

Variables Total Cr Good sleep quality n(%) Poor sleep quality n(%) OR 95%CI p
Tobacco use
 yes 354 5.6% 232(65.5) 122(34.5) 1.000   
 no 5930 94.4% 4101(69.2) 1829(30.8) 0.927 0.716–1.200 0.564
Alcohol use       
 yes 4394 69.9% 2880(65.5) 1514(34.5) 1.000   
 no 1890 30.1% 1453(76.9) 437(23.1) 0.607 0.528–0.697 < 0.001
Study pressure of this academic year
 no 887 14.1% 733(82.6) 154(17.4) 1.000   < 0.001
 smaller 903 14.4% 676(74.9) 227(25.1) 1.381 1.082–1.762 0.009
 general 2611 41.5% 1894(72.5) 717(27.5) 1.535 1.245–1.893 < 0.001
 larger 1488 23.7% 846(56.9) 642(43.1) 3.032 2.437–3.772 < 0.001
 great 395 6.3% 184(46.6) 211(53.4) 4.848 3.672–6.401 < 0.001
Days off from school(/month)      < 0.001
 0 5049 80.3% 3591(71.1) 1458(28.9) 1.000   < 0.001
  < 1 574 9.1% 348(60.6) 226(39.4) 1.587 1.307–1.926 < 0.001
 1–2 395 6.3% 260(65.8) 135(34.2) 1.371 1.067–1.762 0.014
 3–4 110 1.8% 57(51.8) 53(48.2) 2.076 1.366–3.157 < 0.001
  ≥ 5 156 2.5% 77(49.4) 79(50.6) 1.914 1.326–2.764 < 0.001
Self-injurious behaviors
 never 5929 94.4% 4134(69.7) 1795(30.3) 1.000   0.002
 Occasionally 196 3.1% 106(54.1) 90(45.9) 1.575 1.141–2.175 0.006
 sometimes 75 1.2% 52(69.3) 23(30.7) 0.798 0.444–1.435 0.452
 often 84 1.3% 41(48.8) 43(51.2) 2.018 1.165–3.495 0.012
Suicidal ideation in the past 12 months
 yes 576 9.20% 338(58.7) 238(41.3) 1.219 0.989–1.503 0.064
 no 5708 90.80% 3995(70.0) 1713(30.0) 1.000   
Gambling behaviors
 yes 1137 18.1% 734(64.6) 403(35.4) 1.000   
 no 5147 81.9% 3599(69.9) 1548(30.1) 0.852 0.732–0.990 0.037
Exercise for more than 30 min (days/week)
 0 1526 24.3% 961(63) 565(37) 1.000   0.002
 1–2 2687 42.8% 1893(70.5) 794(29.5) 0.768 0.663–0.888 < 0.001
 3–4 1128 18.0% 807(71.5) 321(28.5) 0.737 0.612–0.886 0.001
 5–7 943 15.0% 672(71.3) 271(28.7) 0.822 0.676–0.999 0.049
  1. Note: Cr, Constituent ratio; P is for OR