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Table 3 Multivariate logistic regression analysis of factors associated with short sleep duration

From: Social-biological influences on sleep duration among adult residents of Northeastern China

Factors β χ 2 P OR 95% CI
Age
 Young 0   128. 686 < 0. 001 1   
 Middle age 0. 697 125. 842 < 0. 001 2. 008 (1.778, 2.268)
 Elderly 0. 726 73. 741 < 0. 001 2. 066 (1.751, 2.438)
Place of residence
 Urbanite −0. 246 18. 077 < 0. 001 0. 782 (0.698, 0.876)
 Countryside 0       1   
Marital status
 Marriage /Cohabitation 0   21. 998 < 0. 001 1   
 Unmarried 0. 139 0. 059 0. 807 1. 149 (0.771, 1.396)
 Divorce/Divorcee/Separated spouse 0. 323 13. 340 < 0. 001 1. 381 (1.193, 2.272)
 Widow/ Widower 0. 360 9. 209 0. 002 1. 433 (1.181, 1.738)
Educational level
 Primary school or below 0   7. 865 0. 049 1   
 Junior middle school −0. 158 5. 368 0. 021 0. 854 (0.747, 0.976)
 Senior middle school −0. 118 2. 419 0. 120 0. 889 (0.766, 1.031)
 Undergraduate or above −0. 252 5. 537 0. 019 0. 777 (0.630, 0.959)
Drinking
 No 0       1   
 Yes 0. 181 9. 229 0. 002 1. 198 (1.066, 1.347)
Dietary
 Irregular 0       1   
 Regular −0. 300 19. 799 < 0. 001 0. 741 (0.650, 0.846)
BMI
 Normal 0   9. 046 0. 029 1   
 Underweight −0. 134 0. 844 0. 358 0. 875 (0.659, 1.163)
 Overweight −0. 021 0. 149 0. 700 0. 979 (0.877, 1.092)
 Obesity 0. 176 5. 932 0. 015 1. 192 (1.035, 1.373)
CHD or MIa
 No 0       1   
 Yes 0. 238 12. 765 < 0. 001 1. 269 (1.114, 1.446)
  1. a CHD Coronary Heart Disease, MI Myocardial Infarction
  2. 1:the reference cell