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Author

U. Grittner

2 papers indexed here

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Open access Sep 2026

Classification of Seasonal Allergic Rhinitis Patients by Prospective Patient-Recorded Symptoms: The @IT.2020 Project.

BACKGROUND Seasonal allergic rhinitis (SAR) has been so far classified according to frequency and severity by retrospective information based on the ARIA (Allergic Rhinitis and its Impact on Asthma) classification. Electronic symptom diaries (e-Diaries) are feasible tools to collect prospective patient-reported data....

S. Dramburg, C. J. Hernandez Toro, U. Grittner et al. · 0 citations
Open access Sep 2026

Imputing longitudinal PROM data at the item and score level in clinical trials

Differences between item-level and score-level imputation were generally modest, although score-level imputation tended to yield slightly lower RMSE and bias magnitudes under more severe missingness conditions.

C. Veltri, U. Grittner, P. Gebert · 0 citations

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