ArticleLung India : official organ of Indian Chest Society2026
MAD vs. AHI: Sleep patterns, oxygenation among polysomnography diagnosed by OSA patients.
Article in Lung India : official organ of Indian Chest Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveObstructive sleep apnea is a common sleep disorder characterized by repeated airway obstructive during sleep, leading to breating pauses, reduced sleep quality and decreased blood oxygen levels. MATERIALS AND
methodsPolysomnographic data in Obstructive Sleep Apnea patients were analysed to explore correlations between Apnea Hypopnea Index, Mean Apnea hypopnea Duration, oxygen desaturation and sleep stages.
resultsAmong 136 Obstructive Sleep Apnea patients, Mean Apnea hypopnea duration showed a mild correlation with Apnea Hypopnea Index but no association with age, weight and height. Patients with longer Mean Apnea hypopnea duration had association ( P < 0.05) with poorer oxygenation, lower average saturation, loss of sleep, Mean oxygen desaturation, shorter sleep latency, less Non Rapid Eye Movement 3, more Non Rapid Eye Movement 1 and higher arousal/desaturation. After adjusting Apnea Hypopnea Index, Mean Apnea hypopnea duration remained significantly associated with Epworth Sleep Scale, sleep latency, Non Rapid Eye Movement 1/3, arousal index and all oxygen metrics. These associations were stronger in severe Obstructive Sleep Apnea ( n = 90), while in mild-moderate cases ( n = 46), only Non Rapid Eye Movement 3 duration correlated negatively with Mean Apnea hypopnea duration ( r = -0.14, P = 0.02).
conclusionMean apnea hypopnea duration emerged as an independent marker of oxygen desaturation and sleep disruption in OSA, beyond the Apnea Hypopnea Index. Its critical relevance was more pronounced in severe cases suggesting added value in assessing disease burden. Incorporating event duration into routine evaluation may refine patient stratification and guide targeted management strategies.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.