Cost effectiveness of an air-inflated static overlay for pressure ulcer prevention: a randomized, controlled trial.
Bibliographic record
Abstract
UNLABELLED: Numerous pressure-relieving surfaces of varying costs are available for the prevention of pressure ulcers. There is insufficient evidence to draw conclusions regarding the efficacy or merits of using more expensive technologies. The purpose of this unblinded, randomized, prospective study was to compare the clinical and the cost effectiveness of an inflated overlay with rented, pressure-relieving surfaces for the prevention of pressure ulcers. METHODS: Patients in a 257-bed acute care facility were included if they had a Braden score of ≤ 14, had no skin lesion(s), were ≥ 18 years, weighed < 300 lb, and submitted signed consent. One hundred, ten patients (110) were randomized into a control group using either a microfluid static overlay (MSO) or a low-air-loss dynamic mattress (LALDM) with pulsation (n = 55) or into an experimental group using an inflated static overlay (ISO) (n = 55). Both groups had identical positioning protocols. No statistically significant differences were noted between the 2 groups with regard to age, gender, weight, or Braden scale score. Head-to-toe assessments were performed 3 times a week for a maximum of 14 days to deter- mine presence of pressure ulcers and comfort; Fisher's exact and chi- squared tests were used to assess categorical data, and unpaired t-test and Mann-Whitney statistic tests were used to compare continuous variables. Comparative cost of support surface use was determined at the end of the study. RESULTS: In the control group, 50 patients used an MSO and 5 patients used an LALDM; in the experimental group, 55 patients used an ISO. No significant difference in pressure ulcer incidence was found between the control (n = 6) and experimental groups (n = 2) (11% versus 4%, respectively; P = 0.2706), and there was no significant difference in comfort (90% versus 85%; P = 0.7129). However, a significant difference was noted in total cost ($13,606 CAD versus $3,364 CAD, P ≤ 0.001); the ISO was less expensive. CONCLUSION: The use of an ISO offers a cost-effective option for the prevention of pressure ulcers in a moderate to very high-risk population. .
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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 | 0.017 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| 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".