Frank Siebenhaar MD , Senan Sofi MD , Sophia Neisinger MD , Cem Akin MD, PhD , Polina Pyatilova MD , Eva Grekowitz MD , Antje Haendel , Tomasz Hawro MD , Lea Kiefer MD , Markus Magerl MD , Martin Metz MD , Marcus Maurer MD , Karsten Weller MD
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引用次数: 0
Abstract
Background
Mastocytosis is characterized by expanding neoplastic mast cells in organs such as the skin, bone marrow, and gastrointestinal tract. The release of mast cell mediators triggers cutaneous, gastrointestinal, and other symptoms. Currently, no validated mastocytosis-specific patient-reported outcome measure (PROM) exists to assess disease control.
Objective
Here, we developed a disease-specific instrument, the Mastocytosis Control Test (MCT), for evaluating and monitoring disease control in patients with nonadvanced disease.
Methods
Six potential MCT items were generated using a combined approach consisting of a literature review, patient interviews, and expert input. Item selection and reduction were performed by impact analysis and interitem correlation, followed by expert reviews and cognitive debriefings. In a validation study, the resulting MCT was tested for validity and reliability by assessing internal consistency, test-retest reliability, convergent validity, known-groups validity, and receiver operating characteristics (ROC) analysis.
Results
Ten patients participated in the item generation phase and 101 in the item reduction and validation phase. The final MCT consisted of 5 items. Our methods showed a valid total score, high internal consistency, and test-retest reliability. Convergent and known-groups validity demonstrated a strong correlation with related anchors. The ROC curve analysis suggested a cutoff value of ≥13 points to identify patients with good disease control.
Conclusions
The MCT is a disease-specific, valid, and reliable PROM for adult patients with nonadvanced disease. It may measure and monitor disease control in routine daily practice and clinical trials.
期刊介绍:
JACI: In Practice is an official publication of the American Academy of Allergy, Asthma & Immunology (AAAAI). It is a companion title to The Journal of Allergy and Clinical Immunology, and it aims to provide timely clinical papers, case reports, and management recommendations to clinical allergists and other physicians dealing with allergic and immunologic diseases in their practice. The mission of JACI: In Practice is to offer valid and impactful information that supports evidence-based clinical decisions in the diagnosis and management of asthma, allergies, immunologic conditions, and related diseases.
This journal publishes articles on various conditions treated by allergist-immunologists, including food allergy, respiratory disorders (such as asthma, rhinitis, nasal polyps, sinusitis, cough, ABPA, and hypersensitivity pneumonitis), drug allergy, insect sting allergy, anaphylaxis, dermatologic disorders (such as atopic dermatitis, contact dermatitis, urticaria, angioedema, and HAE), immunodeficiency, autoinflammatory syndromes, eosinophilic disorders, and mast cell disorders.
The focus of the journal is on providing cutting-edge clinical information that practitioners can use in their everyday practice or to acquire new knowledge and skills for the benefit of their patients. However, mechanistic or translational studies without immediate or near future clinical relevance, as well as animal studies, are not within the scope of the journal.