Characteristics of the Study Population of People Newly Identified With Dementia in Ontario, by Group
| Characteristic | IPC Group (n = 46,830) | Non-IPC Group (n = 48,493) |
|---|---|---|
| Age, mean (SD), y | 81.2 (7.0) | 81.4 (7.1) |
| Female, No. (%) | 27,809 (59.4) | 28,481 (58.7) |
| Rural, No. (%) | 7,822 (16.7) | 5,093 (10.5) |
| Recent immigrant, No. (%) | 633 (1.4) | 801 (1.7) |
| Income quintile, No. (%) | ||
| 1 (low) | 10,228 (21.8) | 9,006 (18.6) |
| 2 | 9,874 (21.1) | 9,962 (20.5) |
| 3 | 9,085 (19.4) | 9,222 (19.0) |
| 4 | 8,892 (19.0) | 9,785 (20.2) |
| 5 (high) | 8,751 (18.7) | 10,518 (21.7) |
| Aggregated Diagnosis Group,a No. (%) | ||
| 0-5 (low comorbidity) | 14,788 (31.6) | 14,403 (29.7) |
| 6-10 | 21,339 (45.6) | 22,293 (46.0) |
| ≥11 (high comorbidity) | 10,703 (22.9) | 11,797 (24.3) |
| Physician visits in year before diagnosis, mean (SD) | 20.3 (14.6) | 22.2 (15.8) |
| Resource Utilization Band,b No. (%) | ||
| 0 (low utilization) | 547 (1.2) | 479 (1.0) |
| 1 | 337 (0.7) | 282 (0.6) |
| 2 | 1,969 (4.2) | 1,916 (4.0) |
| 3 | 20,662 (44.1) | 21,259 (43.8) |
| 4 | 12,338 (26.4) | 12,915 (26.6) |
| 5 (high utilization) | 10,977 (23.4) | 11,642 (24.0) |
ACG = Adjusted Clinical Group; ADG = Aggregated Diagnosis Group; IPC = interprofessional primary care; RUB = Resource Utilization Band.
↵a Derived from the Johns Hopkins ACGs, ADGs measure the number of different types of comorbid conditions.
↵b Derived from the Johns Hopkins ACGs, RUBs are quintiles of expected resource use.