Socio-economic impact of cochlear implantation in adults: an Italian study
Bibliographic record
Abstract
Objective: To analyse the cost-effectiveness of unilateral cochlear implant (CI) surgery in Italian adults with post-lingual deafness, focusing on direct costs, Health Utilities Index (HUI), Quality-Adjusted Life Years (QALY), and Incremental Cost-Effectiveness Ratio (ICER). Methods: The analysis, from the Italian healthcare system perspective, included preoperative, surgical, hospitalisation, and postoperative costs. QALYs were estimated using the Italian Nijmegen Cochlear Implant Questionnaire (I-NCIQ) and Ontario Health Utilities Index Mark 3 (HUI-3). HUI-3 score changes were analysed with regression models in Stat View (v5.0.1, SAS Institute Inc). ICER was calculated as the incremental cost per QALY (in Euros/QALY) over the average patient's lifetime. Results: CI significantly improved I-NCIQ (p < 0.001) and HUI-3 scores (p < 0.0001). Average life expectancy at surgery was 21.2 years; the degrade factor was 0.97, yielding a lifetime gain of 2.717 QALYs. Direct costs amount to €19,467.65. Cost-utility analysis showed €7,165.13 per QALY, below the €30,000/QALY ICER threshold. Conclusions: CI surgery is cost-effective based on QALY analysis. Although cost-effectiveness decreases with age, quality of life and health benefits are comparable to younger patients.
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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".