LupusQoL-FR is valid to assess quality of life in patients with systemic lupus erythematosus.
Fiche publication
Date publication
octobre 2012
Auteurs
Membres identifiés du Cancéropôle Est :
Pr BINQUET Christine, Pr BONNOTTE Bernard, Pr GUILLEMIN Francis, Dr DEVILLIERS Hervé
Tous les auteurs :
Devilliers H, Amoura Z, Besancenot JF, Bonnotte B, Pasquali JL, Wahl D, Maurier F, Kaminsky P, Pennaforte JL, Magy-Bertrand N, Arnaud L, Binquet C, Guillemin F
Lien Pubmed
Résumé
OBJECTIVE: To cross-culturally adapt the LupusQoL into French, to test its measurement properties and to further investigate its domain structure. METHODS: The cultural adaptation process according to guidelines and pre-testing resulted in the LupusQoL-FR. SLE patients completed the LupusQoL-FR at baseline, 15 days, 3 months and 6 months. Validity was studied through content and construct validity (factorial and Rasch analysis for structural validity, Spearman's correlation and Mann-Whitney tests for external validity). Cronbach's alpha and intra-class correlation coefficients were computed for reliability. The standardized response mean was computed to evaluate responsiveness. RESULTS: In all, 182 patients, age 39.6 (10.6) years, mostly outpatients [mean SELENA-SLEDAI 2.6 (3.5)] were recruited. Factor analysis with eight imposed factors was very close to the original LupusQoL. A screeplot with parallel analysis showed that LupusQoL domains could be aggregated in two physical and mental scales. Both eight- and two-factor structures showed a good Rasch fit, internal consistency (Cronbach's alpha: 0.85-0.95), and test-retest reliability (intra-class correlation coefficient 0.79-0.95). External convergent (correlation with SF-36, r=0.59-0.78) and divergent validity (according to SELENA-SLEDAI) were also satisfactory. CONCLUSION: The LupusQoL-FR is valid to assess quality of life in SLE patients. A two-factor structure of physical and mental aggregated scales is a valid alternative to the original eight-domain structure.
Référence
Rheumatology (Oxford). 2012 Oct;51(10):1906-15