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Table 1 Characteristics of informal caregivers and people with dementia

From: Perseverance time of informal caregivers for people with dementia: construct validity, responsiveness and predictive validity

 

Study A (n = 198)

Study B (n = 166)

Caregiver

 Female sex (%)

67

55

 Age, years, mean (SD)

66.6 (12.9)

49.5 (14.4)

 Resides with people with dementia, %

59

17

 Duration of informal caregiving, years

 

Median (IQR)

  0

7%

3 (1–5)

  1

27%

  2

20%

  3

18%

  4

14%

  5 or more

15%

 Informal care, h/week, median (IQR)

20 (8–50)

8 (5–18)

 Relationship with people with dementia, %

  Spouse or partner

55

7

  Child

37

54

  Other

8

40

 Perseverance time, %

  Less than 1 month

6

10

  More than 1 month, less than 6 months

15

11

  More than 6 months, less than 1 year

20

13

  More than 1 year, less than 2 years

20

13

  More than 2 years

40

54

 CarerQol-7D tariff, mean (SD)

70.2 (19.2)

75.2 (20.4)

 CarerQol-VAS, mean (SD)

6.4 (1.8)

7.0 (1.7)

 CSI, median (IQR)

8 (6–10)

5 (2–7)

 SRB, mean (SD)

6.0 (2.2)

4.8 (2.3)

 VAS health score, mean (SD)

7.3 (1.6)

7.3 (1.7)

People with dementia

 Female sex, %

53

73

 Age, years, mean (SD)

81.3 (6.6)

76.6 (17.0)

 Health VAS score, mean (SD)

5.8 (1.9)

5.4 (2.0)

  1. CarerQol-7D score ranges from 0 to 100, with higher scores indicating favorable situation; CarerQol-VAS score ranges from 0 to 10, with higher scores indicating favorable situation; CSI scores range from 0 to 18, with lower scores indicating favorable situation; SRB scores range from 0 to 10, with lower scores indicating favorable situation; and VAS health score ranges from 0 to 10, with higher scores indicating a more favorable situation. The category “Other” in relationship includes other family members, friends, neighbors, and acquaintances
  2. Abbreviations: CarerQol Care-related Quality of Life instrument, CSI Caregiver Strain Index, SRB Self-rated Burden scale, VAS Visual analogue scale