Does physical activity reduce seniors' need for healthcare?: a study of 24 281 Canadians
Bibliographic record
Abstract
OBJECTIVES: Physical inactivity has been associated with significant increases in disease morbidity and mortality. This study assessed the association between physical activity and (1) health resource use and (2) health resource use costs. DESIGN AND PARTICIPANTS: The responses from 24 281 respondents >65 years to the Canadian Community Health Survey Cycle 1.1 were used to find activity levels and determine health resource use and costs. Logistic regression models were used to assess risks of hospitalisation. RESULTS: Physical inactivity was associated with statistically significant increases to hospitalisations, lengths of stay and healthcare visits (p<0.01). Average healthcare costs (based on the 2007 value of the Canadian dollar) for the physically inactive were $C1214.15 higher than the healthcare costs of the physically active ($C2005.27 vs $C791.12, p<0.01). CONCLUSION: Among those >65 years, physical activity is strongly associated with reduced health resource use and costs.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.005 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".