Associations of Frequent Emergency Department Use with Older Age, Multimorbidity, and Perceived Health: A Population-Based Study
Bibliographic record
Abstract
The purpose of this retrospective population-based study of adults aged ≥50 years was to examine associations between older age, multimorbidity, and self-rated perceptions of health with frequent emergency department (ED) visits. Using Canadian Community Health Survey (CCHS) 2015-16 data, a multivariate logistic regression model was generated to evaluate associations between predictor variables and frequent ED use. The study sample included data for 57,138 participants across Canada, equating to approximately 13,091,592 when sampling weights applied. Frequent ED use was associated with older age, male sex, multimorbidity, and lower household income. Lower self-rated levels of health were most strongly associated with frequent ED use. Having a primary health care provider was not a significant predictor in univariate or multivariate analyses. Older adults who are frequent ED attenders are a distinct population whose characteristics need to be understood to target strategies for those who most need them to improve quality care and outcomes.
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 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".