What question did this study set out to answer?

To identify the minimal clinically important difference (MCID) for the 40-Item Smell Identification Test in individuals with cystic fibrosis.

March 16, 2026Open Access

Determining the Minimal Clinically Important Difference of the 40‐Item Smell Identification Test in People With Cystic Fibrosis

Puntos clave

To identify the minimal clinically important difference (MCID) for the 40-Item Smell Identification Test in individuals with cystic fibrosis.
Conducted the 40-Item Smell Identification Test for participants with cystic fibrosis.
Analyzed results to determine a meaningful change in olfactory function.
Developed disease-specific threshold for clinically relevant assessment.
Established a clinically interpretable cut-off score for the smell identification test.
Validated the significance of the new threshold for guiding clinical care and research.
Highlighted the need for disease-specific MCIDs in olfactory assessments.

Resumen

This CF-specific SIT threshold provides a clinically interpretable cut-off for assessing olfaction. These findings establish a foundation for future work and highlight the importance of developing disease-specific MCIDs to guide clinical care and research.

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