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Table 5 Impact of different factors on sleep disturbances at 6 months (n = 911)

From: Prevalence of sleep disturbances and long-term reduced health-related quality of life after critical care: a prospective multicenter cohort study

   Difficulties in falling asleep Poor quality of sleep Sleep deficit
  n OR CI 95% for OR P value OR CI 95% for OR P value OR CI 95% for OR P value
Concurrent disease   2.32 1.67 to 3.23 <0. 001 2.51 1.62 to 3.89 <0. 001 1.14 0.76 to 1.72 0.52
APACHE II score           
   0 to 15 491 1.00   0.06 1.00   0.80 1.00   0.63
   16 to 25 315 0.61 0.39 to 0.95   0.85 0.49 to 1.44   1.35 0.71 to 2.55  
   26 to 43 105 0.78 0.49 to 1.23   0.83 0.48 to 1.45   1.21 0.63 to 2.32  
LoS in ICU           
   <37 hours 221 1.00   0.14 1.00   0.70 1.00   0.33
   38 to 52 hours 201 0.98 0.66 to 1.45   1.19 0.74 to 1.91   1.39 0.80 to 2.40  
   53 to 144 hours 275 0.64 0.43 to 0.97   0.89 0.54 to 1.47   0.92 0.53 to 1.59  
   >144 hours 214 0.85 0.58 to 1.23   0.99 0.63 to 1.57   0.90 0.54 to 1.50  
LoS in hospital           
   <5 days 281 1.00   0.75 1.00   0.99 1.00   0.57
   6 to 13 days 320 1.00 0.71 to 1.41   0.97 0.64 to 1.46   1.03 0.65 to 1.62  
   >13 days 310 0.90 0.64 to 1.25   0.99 0.66 to 1.47   1.25 0.80 to 1.95  
Diagnosis at admission           
   Multiple trauma 102 1.00   0.59 1.00   0.14 1.59   0.17
   Sepsis 78 1.61 0.85 to 3.03   2.13 0.93 to 4.87   0.98 0.44 to 2.20  
   Gastrointestinal 188 1.33 0.69 to 2.56   2.62 1.13 to 6.05   1.99 0.75 to 5.27  
   Respiratory 185 1.19 0.69 to 2.08   1.31 0.60 to 2.85   1.35 0.65 to 2.81  
   Cardiovascular 88 1.42 0.84 to 2.40   1.97 0.95 to 4.10   1.83 0.91 to 3.69  
   Miscellaneous 270 1.10 0.63 to 1.92   1.59 0.74 to 3.40   1.89 0.90 to 3.97  
  1. Impact determined using logistic regression univariate analysis. Intensive care unit (ICU) patients only. The results are adjusted for age and sex. APACHE, Acute Physiology and Chronic Health Evaluation; CI, confidence interval; LoS, length of stay; OR, odds ratio. Bold data is on significant level.