Supine position-related obstructive sleep apnea in children: insights from the Childhood Adenotonsillectomy Trial
Bibliographic record
Abstract
PURPOSE: This study aimed to examine the effectiveness of adenotonsillectomy (AT) among pediatric obstructive sleep apnea (OSA) patients with and without supine position-related OSA (POSA) and explore the stability of this subtype over time. METHODS: Data from the Childhood Adenotonsillectomy Trial (CHAT) were analyzed. Children with OSA were randomized to early AT (EAT) or watchful waiting with supportive care (WWSC). Polysomnographic and health outcomes were assessed at baseline and 7 months. POSA was defined as a supine obstructive apnea-hypopnea index (OAHI) ≥ 2× non-supine OAHI, with ≥ 30 min spent in each position. RESULTS: Among 354 patients (mean age: 6.97 ± 1.39 years; male: 48.1%), 47.2% had POSA at baseline. Compared to non-POSA, children with POSA exhibited lower baseline OAHI [3.77 (2.48, 7.71) vs. 5.42 (3.03, 9.47) events/h, p = 0.006], longer rapid eye movement (REM) sleep in the supine position (p = 0.05), shorter REM sleep in non-supine position (p = 0.005), and fewer allergic conditions (37.7% vs. 48.4%, p = 0.05). Generalized linear models showed AHI reduction was associated with randomization grouping (p < 0.001) but not POSA status (p = 0.10). Our restricted cubic splines further supported this finding. Notably, in the WWSC group, POSA classification changed for half of the patients over 7 months, with changes in non-supine OAHI as a significant indicator. CONCLUSION: AT is effective in managing childhood OSA regardless of POSA status. The observed dynamic nature of POSA warrants future research into its pathophysiology and natural history. CLINICAL TRIAL REGISTRATION: Childhood Adenotonsillectomy Study for Children with OSAS (CHAT), Clinical Trial Identifier NCT00560859.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".