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Table 2 Prevalence of DSM-IV insomnia disorder with different durations in various medical conditions (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 (%)  
Medical conditions          
 No medical conditions 1161 28.8 1133 97.6 9 0.8 19 1.6 <0.001
 Any medical conditions 2868 71.2 2661 92.8 69 2.4 138 4.8  
Chronic diseasesb          
 Diabetes mellitus          
  No diabetes mellitus 3523 87.1 3304 94.3 67 1.9 134 3.8 0.78
  Diabetes mellitus 524 12.9 490 93.5 11 2.1 23 4.4  
 Hypertension          
  No hypertension 2467 61.0 2323 94.5 44 1.8 91 3.7 0.50
  Hypertension 1580 39.0 1471 93.6 34 2.2 66 4.2  
 Heart disease         
  No heart disease 3258 80.5 3074 94.8 62 1.9 107 3.3 <0.001
  Heart disease 789 19.5 720 91.6 16 2.0 50 6.4  
 Stroke          
  No stroke 3895 96.2 3660 94.4 74 1.9 143 3.7 0.002
  Stroke 152 3.8 134 88.2 4 2.6 14 9.2  
 Gouty arthritis          
  No gouty arthritis 3735 92.3 3505 94.2 72 1.9 142 3.8 0.67
  Gouty arthritis 312 7.7 289 93.2 6 1.9 15 4.8  
 Pulmonary diseases          
  No pulmonary diseases 3584 88.6 3375 94.6 61 1.7 130 3.6 0.001
  Pulmonary diseases 463 9.8 419 90.5 17 3.7 27 5.8  
 Depression          
  Geriatric depression scale <5 3612 89.3 3437 95.5 60 1.7 102 2.8 <0.001
  Geriatric depression scale ≥5 396 9.8 324 82.0 17 4.3 54 13.7  
Clinical conditions         
 Excessive daytime sleepiness         
  No 3602 89.0 3395 94.6 64 1.8 131 3.6 0.01
  Yes 445 11.0 399 90.9 14 3.2 26 5.9  
 Pain          
  No 2660 66.2 2534 95.3 45 1.7 81 3.0 <0.001
  Mild 1070 26.6 1004 93.8 21 2.0 45 4.2  
  Moderate 191 4.7 163 85.3 10 5.2 18 9.4  
  Severe 103 2.6 88 85.4 2 1.9 13 12.6  
 Fall          
  No fall 3491 86.3 3294 94.8 59 1.7 121 3.5 0.001
  Single fall 398 9.8 361 90.7 13 3.3 24 6.0  
  Repeated falls 134 3.3 119 88.8 4 3.0 11 8.2  
  1. aDue to missing data, total numbers of participants in some variables are different
  2. bChronic diseases were defined as pharmacologically-treated morbidities