Life expectancy and health care utilization of individuals with dementia in Ontario, Canada: A population-level study
Bibliographic record
Abstract
IntroductionIt is important for dementia patients, their families and caregivers, and health planners to have an understanding of life expectancy and the likely care experience of patients from dementia diagnosis to end-of-life. Objectives and ApproachUsing administrative health data of all dementia patients in Ontario, Canada (2014 to 2017) and period life table methodology, life expectancy and average health care use and cost for individuals from dementia diagnosis to death was examined. Dementia was ascertained by a validated case ascertainment definition and information from long-term care, home care and complex continuing care assessments. Formal care was categorized as inpatient, outpatient, home care or long-term care. ResultsLife expectancy at dementia diagnosis was 8.7 years and 9.8 years for men and women diagnosed prior to age 75, of which 3.7 years (42%) and 4.7 years (49%) was spent receiving formal care, respectively. Life expectancy was 4.4 and 5.2 years for men and women diagnosed after age 75, of which 2.2 years (50%) and 3.1 years (60%) was spent receiving care, respectively. Women received proportionally more long-term and home care compared to men, while men received more inpatient and outpatient care. In the year prior to dementia diagnosis, individuals received formal care for 20 days per 100 person-days. Those at the end-of-life received care for 79 days per 100 person-days, including 55 long-term care days and 7.8 inpatient care days. Average direct health care costs from diagnosis to end-of-life was $230,000 and was higer for women and those diagnosed before age 75. ConclusionThe burden of formal care for those with dementia is substantial. The results of this study will be used by physicians to inform conversations with patients, their families and caregivers around what to expect after a dementia diagnosis, and by health care planners for population health planning.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.005 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".