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Table 1 Characteristics of residents with higher and lower sleep quality in Australian residential aged care facilities

From: The association between benzodiazepine use and sleep quality in residential aged care facilities: a cross-sectional study

  All residents Higher sleep quality (NTSQS >10) Lower sleep quality (NTSQS ≤10) P value
  383 202 53% 181 47%  
Demographic characteristics
 Age (mean ± SD) 87.53 (6.19) 87.62 (6.16) 87.43 (6.22) 0.77a
 Female 297 160 79.2% 137 75.7% 0.39b
 High Level Care 135 79 39.1% 56 30.9% 0.09b
 Born in Australia 298 150 74.3% 148 81.8% 0.10b
Functional characteristics
 Charlson’s comorbidity index (median, IQR) 2.00 (1.00, 3.00) 2.00 (1.00, 3.00) 2.00 (1.00, 4.00) 0.39c
 ADLs (median, IQR) 1.00 (4.00, 6.00) 3.00 (1.00, 6.00) 4.00 (1.00, 6.00) 0.66c
 DSRS (mean ± SD) 19.09 (16.87) 20.19 (16.57) 17.85 (17.10) 0.21a
 PAINAD, any 113 50 24.8% 63 34.8% 0.04b
Medical diagnoses and medications
 Dementia 169 94 46.5% 75 41.4% 0.35b
 Insomnia 48 22 10.9% 26 14.4% 0.37b
 Anxiety 146 78 38.6% 68 37.6% 0.81b
 Depression 230 115 56.9% 115 63.5% 0.21b
 Any non-benzodiazepine sedatives 272 145 71.8% 127 70.2% 0.71b
  1. NTSQS night-time sleep quality score, ACAT aged care assessment team, ADLs activities of daily living, DSRS dementia severity rating scale, PAINAD Pain Assessment in Advanced Dementia Scale. SD standard deviation, IQR interquartile range
  2. a.Student’s t-test
  3. b.Pearson’s Chi-square test
  4. c.Mann-Whitney U test