Open radical prostatectomy in the elderly: a case for concern?
Bibliographic record
Abstract
UNLABELLED: Study Type--Therapy (case series). Level of Evidence 4. What's known on the subject? And what does the study add? Adverse outcomes after radical prostatectomy are more often recorded in the elderly. In the USA, elderly patients undergoing radical prostatectomy are treated at institutions where suboptimal outcomes are recorded. OBJECTIVE: • To assess the rate of adverse outcomes after open radical prostatectomy (ORP) in the elderly and to examine the effect of annual hospital caseload (AHC) and academic institutional status on adverse outcomes in these of patients. PATIENTS AND METHODS: • Within the Health Care Utilization Project Nationwide Inpatient Sample, we focused on ORPs performed between 1998 and 2007. Subsequently, we restricted to patients aged ≥75 years. • In both datasets, we examined transfusion rates, intra-operative and postoperative complication rates, and in-hospital mortality rates. • Stratification was performed according to AHC tertiles and academic status. • Multivariable logistic regression analyses were fitted. RESULTS: • Of 115,554 ORP patients, 2109 (1.8%) were aged ≥75 years. • In multivariable analyses performed in the entire cohort, elderly age increased homologous blood transfusion rates (P < 0.001), intra-operative (P= 0.001) and postoperative (P < 0.001) complication rates, and the mortality rate (P= 0.007). • Most elderly were treated at low or intermediate AHC (68.5%) and non-academic centres (56.2%). • Within the elderly cohort, intra-operative (2.9%) and postoperative (22.2%) complications tended to be highest at low AHC institutions compared to institutions of intermediate (2.7% and 17.4%) and high AHC (1.7% and 14.5%). Similarly, intra-operative (2.7% vs 2.1%) and postoperative complications (19.1% vs 13.9%) tended to be higher at non-academic than academic centres. • In multivariable analyses performed in the elderly subgroup, low AHC predicted higher intra-operative complications and higher homologous transfusions, whereas non-academic status predicted higher postoperative complications. CONCLUSIONS: • Adverse outcomes are more often recorded in the elderly. • Most elderly are treated at institutions where suboptimal outcomes are recorded.
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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 | 0.004 | 0.011 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 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".