Oscillating Positive Expiratory Pressure (OPEP) Therapy in Bronchiectasis and Chronic Obstructive Pulmonary Disease (COPD): A Narrative Review of Clinical Studies.

Pulm Ther · 2026 · PMC13287195 · PMID 41903102

Europe PMC DOI

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closest p

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a strong trendno p-value reported

Summarizing, there was a strong trend towards improved LOS with the use of OPEP compared to PEP.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.