A target backrest elevation of 45° was not feasible for mechanically ventilated patients; elevations achieved did not prevent ventilator associated pneumonia
Bibliographic record
Abstract
van Nieuwenhoven CA, Vandenbroucke-Grauls C, van Tiel FH, et al. Feasibility and effects of the semirecumbent position to prevent ventilator-associated pneumonia: a randomized study. Crit Care Med 2006;34:396–402.[OpenUrl][1][CrossRef][2][PubMed][3][Web of Science][4] Q In critically ill patients on mechanical ventilation, is a semirecumbent position of 45° feasible and effective for prevention of ventilator associated pneumonia (VAP)? ### ![Graphic][5] Design: randomised controlled trial. ### ![Graphic][6] Allocation: concealed. ### ![Graphic][7] Blinding: blinded (outcome assessors). ### ![Graphic][8] Follow up period: median 5–6 days (range 0–64 d). ### ![Graphic][9] Setting: 4 intensive care units (ICUs) in 3 university hospitals in the Netherlands. ### ![Graphic][10] Patients: 221 adults (mean age 64 y, 63% men) who were intubated within 24 hours of ICU admission and had an expected duration of ventilation ⩾48 hours. ### ![Graphic][11] Intervention: semirecumbent position (backrest 45° from horizontal) (n = 112) or supine position (10°) (n = 109) for the duration of ventilation. A nurse … [1]: {openurl}?query=rft.jtitle%253DCritical%2Bcare%2Bmedicine%26rft.stitle%253DCrit%2BCare%2BMed%26rft.aulast%253Dvan%2BNieuwenhoven%26rft.auinit1%253DC.%2BA.%26rft.volume%253D34%26rft.issue%253D2%26rft.spage%253D396%26rft.epage%253D402%26rft.atitle%253DFeasibility%2Band%2Beffects%2Bof%2Bthe%2Bsemirecumbent%2Bposition%2Bto%2Bprevent%2Bventilator-associated%2Bpneumonia%253A%2Ba%2Brandomized%2Bstudy.%26rft_id%253Dinfo%253Adoi%252F10.1097%252F01.CCM.0000198529.76602.5E%26rft_id%253Dinfo%253Apmid%252F16424720%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/external-ref?access_num=10.1097/01.CCM.0000198529.76602.5E&link_type=DOI [3]: /lookup/external-ref?access_num=16424720&link_type=MED&atom=%2Febnurs%2F9%2F4%2F117.atom [4]: /lookup/external-ref?access_num=000235065500016&link_type=ISI [5]: /embed/inline-graphic-1.gif [6]: /embed/inline-graphic-2.gif [7]: /embed/inline-graphic-3.gif [8]: /embed/inline-graphic-4.gif [9]: /embed/inline-graphic-5.gif [10]: /embed/inline-graphic-6.gif [11]: /embed/inline-graphic-7.gif
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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 | 0.002 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.003 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.010 | 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".