Short-Term Prognosis in Acute Asthma Exacerbations: A Comparative Evaluation of Machine Learning Models Using Spirometry and Tracheal Respiratory Sound Analysis.

Although some acoustic features, particularly wheezing-related parameters and high-frequency spectral components, showed higher correlation coefficients compared to others, these findings did not reach statistical significance and therefore do not support the presence of a meaningful association between acoustic changes and pulmonary function improvement ( Supplementary Tables S1 and S2 ).

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