Justícia, Jose LuisBaró, EvaCardona, VictoriaGuardia, PedroOjeda, PedroOlaguíbel, José MariaVega, José MariaVidal, Carmen2016-08-102016-08-102011Justícia JL, Baró E, Cardona V, Guardia P, Ojeda P, Olaguíbel JM, et al. Development of a questionnaire to assess patient satisfaction with allergen-specific immunotherapy in adults: item generation, item reduction, and preliminary validation. Patient Prefer Adherence. 2011; 5:239-501177-889X (Online)http://hdl.handle.net/10668/2366Journal Article;BACKGROUND Allergen-specific immunotherapy (SIT) is a treatment capable of modifying the natural course of allergy, so ensuring good adherence to SIT is fundamental. Up until now there has not existed an instrument specifically developed to measure patient satisfaction with SIT, although its assessment could help us to comprehend better and improve treatment adherence and effectiveness. The aim of this study was to develop an instrument to measure adult patient satisfaction with SIT. METHODS Items were generated from a literature review, focus groups with allergic adult patients undergoing SIT, and a meeting with experts. Potential items were administered to allergic patients undergoing SIT in an observational, cross-sectional, multicenter study. Item reduction was based on quantitative and qualitative criteria. A preliminary assessment of feasibility, reliability, and validity of the retained items was performed. RESULTS An initial pool of 70 items was administered to 257 patients undergoing SIT. Fifty-four items were eliminated resulting in a provisional instrument with 16 items. Factor analysis yielded four factors that were identified as perceived efficacy, activities and environment, cost-benefit balance, and overall satisfaction, explaining 74.8% of variance. Ceiling and floor effects were negligible for overall score. Overall score was associated with the type and intensity of symptoms. CONCLUSION This is the first attempt to develop a satisfaction with SIT measure from the perspective of the allergic patient, and evidence has been found in favor of its reliability and validity.enAllergen-specific immunotherapyAllergyQuestionnaireScaleAssessmentSatisfactionEstudios transversalesDesensibilización InmunológicaAnálisis factorial estadísticoSatisfacción del pacienteReproducibilidad de los resultadosMedical Subject Headings::Named Groups::Persons::Age Groups::AdultMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional StudiesMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Biological Therapy::Immunomodulation::Immunotherapy::Immunosuppression::Desensitization, ImmunologicMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Factor Analysis, StatisticalMedical Subject Headings::Health Care::Health Care Quality, Access, and Evaluation::Quality of Health Care::Health Care Evaluation Mechanisms::Data Collection::Interviews as Topic::Focus GroupsMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Diseases::Immune System Diseases::HypersensitivityMedical Subject Headings::Diseases::Immune System DiseasesMedical Subject Headings::Health Care::Health Services Administration::Organization and Administration::Public Relations::Consumer Satisfaction::Patient SatisfactionMedical Subject Headings::Psychiatry and Psychology::Psychological Phenomena and Processes::Mental Processes::PerceptionMedical Subject Headings::Psychiatry and Psychology::Behavior and Behavior Mechanisms::Behavior::Personal SatisfactionMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Research Design::Reproducibility of Resultsresearch article21660106open access10.2147/PPA.S19219PMC3105877