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Table 2 Characteristics of proxy raters

From: Inter-rater agreement of the Quality of Life-Alzheimer’s Disease (QoL-AD) self-rating and proxy rating scale: secondary analysis of RightTimePlaceCare data

ILTC: Professional carers (n = 476)

 Age/ years, mean (SD)

41.9 (11.8)

 Weekly hours of work, mean (SD)

35.7 (5.6)

 Professional education, n (%)

  Nursing aid

48 (10.7%)

  Certified nursing assistant

250 (55.9%)

  Registered nurse

149 (33.3%)

HC: Informal carers (n = 854)

 Age/ years, mean (SD)

64.8 (13.5)

 Gender, n (%)

  Female

590 (69.2%)

  Male

262 (30.8%)

 Marital status, n (%)

  Married/cohabitant

660 (77.3%)

  Widowed

42 (4.9%)

  Divorced

85 (10.0%)

  Never married

67 (7.8%)

 Relationship to person with dementia, n (%)

  Husband

142 (16.6%)

  Wife

208 (24.4%)

  Child

385 (45.1%)

  Friend

12 (1.4%)

  Other

106 (12.4%)

 ZBI, mean (SD)

31.7 (15.6)

 CRA/ Lack of family support (subscale), mean (SD)

12.1 (4.7)

 CRA/ Impact on health (subscale), mean (SD)

9.9 (3.9)

 EQ-5D-3 L, mean (SD)

0.8 (0.3)

 EQ-5D VAS, mean (SD)

68.7 (18.6)

 GHQ-12, mean (SD)

12.8 (5.7)

 NPI-Q-D, mean (SD)

10.6 (9.0)

  1. For some variables, data are not available for all participants (percentages are relative frequencies of the valid values)
  2. Value ranges of measures: see Additional file 1