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Table 1 Characteristics of the sample

From: Item distribution, internal consistency and inter-rater reliability of the German version of the QUALIDEM for people with mild to severe and very severe dementia

Proxy raters Cognitive interviews (n = 16) IRR evaluation (n = 40)
 Age in years, mean (±SD) 45.0 (±11.2) 41.7 (±12.0)
 Female, n (%) 11 (69) 34 (85)
 Registered nurses, n (%) 10 (63) 24 (60)
 Work experience in years, mean (±SD) 14.3 (±7.5) 11.8 (±7.3)
 Hours worked per week, mean (±SD) 35.0 (±4.7) 32.7 (±5.5)
 Caregivers with migrant backgrounds, n (%) 4 (25) ---
People with dementia Mild to severe dementia (n = 55) Very severe dementia (n = 36)
 Age in years, mean (±SD) 84.7 (±8.3) 84.1 (±9.4)
 Female, n (%) 43 (78) 33 (92)
 PSMS, mean (± SD) 19.8 (±4.6) 24.9 (±2.3)
 Care dependency levelsa, n (%)   
  None 0 (0) 0 (0)
  1 7 (13) 0 (0)
  2 29 (53) 5 (14)
  3 19 (34) 31 (86)
 FAST score, n (%)   
  2 1 (2)  
  3 1 (2)  
  4 3 (5)  
  5 0 (0)  
  6 50 (91)  
Length of stay in the nursing home in months, mean (±SD) 26.6 (±21.6) 40.1 (±23.2)
Missing values, QUALIDEMb 0/8800 7/3024
  1. aAs determined by expert raters of the medical service of the statutory long-term care insurance system
  2. bEach QUALIDEM item was rated four times for each participant (FAST 2 – 6 = 37 + 3 items, FAST 7 = 18 + 3 items)