RT Journal Article T1 Psychometric study of the SF-36v2 in hereditary angioedema due to C1 inhibitor deficiency (C1-INH-HAE). A1 Palao-Ocharan, Paola A1 Prior, Nieves A1 Pérez-Fernández, Elia A1 Caminoa, Magdalena A1 DV-HAE-QoL Study Group, A1 Caballero, Teresa K1 C1-inhibitor K1 HAE-QoL K1 Hereditary angioedema K1 Psychometric study K1 Quality of life K1 Questionnaire K1 SF-36v2 AB The generic 36-item Short-Form Health Survey (SF-36v2) has been used to assess health related quality of life in adult patients with hereditary angioedema due to C1-inhibitor deficiency (C1-INH-HAE) even though it has not yet been validated for use in this specific disease. This study aims to validate the SF-36v2 for use in adult patients with C1-INH-HAE. There was a very low item non-response rate (1-3.4%), with a high ceiling effect in 25/35 items and a low floor effect in 3/35 items. A moderate ceiling effect was observed in 5/8 dimensions of the SF-36v2, whereas no floor effect was noticed in any of the dimensions. Internal consistency was good to excellent with Cronbach's alpha coefficient ranging between 0.82 and 0.93 for the different dimensions. Construct validity was good: seven out of the 8 hypotheses defined on clinical criteria were confirmed, discriminant validity assessment showed significant differences among patients with different C1-INH-HAE severity, convergent validity showed a good correlation among the physical and mental component summaries of the SF-36v2 and the HAE-QoL total score (0.45 and 0.64 respectively, P  The psychometric properties of the SF-36v2 were evaluated in an international setting based on responses from 290 adult C1-INH-HAE patients in 11 countries. YR 2022 FD 2022-03-02 LK http://hdl.handle.net/10668/20338 UL http://hdl.handle.net/10668/20338 LA en DS RISalud RD Apr 7, 2025