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Table 1 Demographics and health behavior of participants by different durations of DSM-IV insomnia disorder (n = 4047)a

From: Correlates of self-report chronic insomnia disorders with 1–6 month and 6-month durations in home-dwelling urban older adults - the Shih-Pai Sleep Study in Taiwan: a cross-sectional community study

    Insomnia status  
  Total No insomnia 1–6 month insomnia disorder 6-month insomnia disorder p-value for X 2
  n = 4047 n = 3794 n = 78 n = 160  
  n (%) n Rate (%) n Rate (%) n Rate (%)  
Demographic data          
 Age (years)          
   ≥75 1523 37.6 2371 94.4 46 1.8 94 3.7 0.65
   <75 2524 62.4 1421 93.7 32 2.1 63 4.2  
 Gender          
  Male 2259 55.8 2150 95.6 30 1.3 68 3.0 <0.001
  Female 1788 44.2 1643 92.3 8 2.7 89 5.0  
 Education          
  Illiterate 677 16.7 3162 94.2 63 1.9 131 3.9 0.83
  Literate 3370 83.3 632 93.9 15 2.2 26 3.9  
 Marital status          
  Married 3008 74.3 2838 94.8 47 1.6 109 3.6 0.005
  Single, divorced and widowed 1039 25.7 956 92.4 31 3.0 48 4.6  
 Living status          
  With others 3818 94.3 3583 94.3 74 1.9 144 3.8 0.35
  Alone 229 5.7 211 92.5 4 1.8 13 5.7  
 Health behavior          
  Smoking          
   Not current smoker 3354 82.9 3139 94 67 2.0 135 4.0 0.44
   Current smoker 693 17.1 655 95.2 11 1.6 22 3.2  
  Alcohol          
   Not current drinker 3675 90.9 3442 94.1 71 1.9 145 4.0 0.78
   Current drinker 372 9.2 352 94.9 7 1.9 12 3.2  
  1. aDue to missing data, total numbers of participants in some variables are different