Table 3.

Intra-class coefficients (ICC) of item scores and total score of the IDEAL schedule between interviewers and silent raters (inter-rater reliability)

IDEAL Items	ICCs (95%CI)
Activities of daily living	0.87 (0.84-0.90)
Physical health	0.72 (0.65-0.77)
Cognitive functioning	0.83 (0.79-0.86)
Behavioral and psychological symptoms	0.79 (0.75-0.83)
Social support	0.59 (0.51-0.66)
Nonprofessional care
Time spent on care by non-professional carer	0.81 (0.77-0.85)
Carer distress	0.84(0.80-0.87)
Professional care
Total number of hours of professional care received	0.87 (0.83-0.89)
Total number of hours of professional care needed	0.86 (0.83-0.89)
Type of dementia related care needed	0.88 (0.85-0.90)
Total IDEAL score	0.93 (0.92-0.95)