Estimation of Hospital Costs for Colorectal Cancer Care for Nova Scotia
Bibliographic record
Abstract
BACKGROUND: Colorectal cancer (CRC) is the second most common invasive cancer in Canada. Estimates of the costs of care allow estimation of the cost effectiveness of screening for premalignant and early disease. OBJECTIVE: To estimate, from administrative data, the hospital costs incurred by a population-based cohort of CRC cases over three years from diagnosis. DESIGN: All Nova Scotia residents with CRC who were diagnosed in 1990 were identified from the Nova Scotia Cancer Registry. These cases were linked to the administrative files of the Nova Scotia Department of Health, which contain information on diagnosis, procedures and length of stay for all admissions and day surgery visits to Nova Scotia hospitals. MEASUREMENTS: The lengths of stay and hospital-specific per diem rates were used as the measures of resource use. The costs were analyzed in terms of the extent of spread at diagnosis; the time period after diagnosis; the time period before death; and, for typical cases, the age and presence of comorbidity identified during the initial surgical admission. RESULTS: The estimated three-year hospital cost for the complete cohort of 593 cases was $9.8 million. This cost was significantly less for cases with local spread, highest in the six months around, and after diagnosis and in the final six months of life, and highest in the typical cases (patients who were older and had significant comorbid conditions). CONCLUSIONS: Hospital-specific per diem rates and lengths of stay are an approximate measure of hospital resource use.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".