Positive Expiratory Pressure Therapy With And Without Oscillation And Hospital Length Of Stay For Acute Exacerbation Of Chronic Obstructive Pulmonary Disease.

Int J Chron Obstruct Pulmon Dis · 2019 · PMC6875493 · PMID 31819393

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did not reach statistical significanceno p-value reported

Discussion We have shown that adjunctive therapy with a PEP or OPEP device may reduce hospital length of stay (LOS) in patients admitted for AECOPD although this finding did not reach statistical significance.

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a strong trendno p-value reported

While there was a strong trend towards improved LOS with the use of OPEP compared to PEP, the study was underpowered to detect a statistically significant difference.

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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.