Clinical characteristics and prognostic factors of pulmonary tuberculosis with interstitial changes.

Although other clinical parameters such as the duration of hospital stay, BNP, and PLT levels did not reach statistical significance in conventional analyses, their relatively high importance in the random forest model implies potential non-linear interactions with other variables (e.g., age and pathogen diversity) that merit further investigation.

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Second, the small sample size not only reduces statistical power but also increases the risk that some clinically relevant associations failed to reach statistical significance.

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