Validação de versão para o português de questionário sobre qualidade de vida para mulher com endometriose (Endometriosis Health Profile Questionnaire - EHP-30)

Abstract

A fidedignidade teste-reteste apresentou ICC de 0,8 a 0,9, demonstrando estabilidade do instrumento. Na validação de construto, demonstraram-se fortes correlações da escala de auto-imagem do EHP-30 com os domínios físico (-0,6) e psicológico (-0,6) do WHOQOL-Bref e da escala de suporte social com o BDI (0,5), evidenciando-se, assim, boa correlação com outros instrumentos de avaliação de qualidade de vida. CONCLUSÕES: o EHP-30 Português mostrou ser um instrumento de fácil e rápida aplicação e bem aceito pelas pacientes, apresentando bom desempenho psicométrico, com medidas de fidedignidade adequadas (consistência interna e fidedignidade teste-reteste) e validade de construto. Estes resultados demonstram que o EHP-30 Português é um instrumento adequado para avaliação de qualidade de vida em mulheres brasileiras com endometriose em ambiente clínico e de pesquisa. AbstractPURPOSE: the objective of the present study was the development of the Brazilian Portuguese version of Endometriosis Health Profile Questionnaire (EHP-30), the cross-cultural adaptation to Brazil and the evaluation of EHP-30 Portuguese psychometric measures in a Brazilian sample. METHODS: the original instrument in English was translated into Portuguese following international guidelines, going through all stages of translation, back-translation and comparison of the versions for cross-cultural adaptation, face and content validity. A sample of 54 patients with endometriosis was used for internal consistency analyses using the Cronbach alpha. Test-retest reliability was evaluated through the intraclass correlation coefficient (ICC). In order to evaluate the convergent construct validity, the correlation between EHP-30 Portuguese and WHOQOL-Bref and Beck Depression Inventory (BDI) was tested. RESULTS: internal consistency presented alpha values of 0.8 to 0.9 suggesting homogeneity between questions. The test-retest reliability presented ICC of 0.8 to 0.9 showing instrument stability. In the construct validation, strong correlations were demonstrated of the EHP-30 Portuguese self-image scale with physical (-0.6) and psychological domains (-0.6) of WHOQOL-Bref, and EHP-30 Portuguese social support scale with BDI (0.5), confirming good correlation with other quality of life evaluation instruments. CONCLUSIONS: the EHP-30 Portuguese was found to be an easy, quickly applied instrument, and well-accepted by the patients. It presented good psychometric properties with appropriate reliability measures (internal consistency and test-retest reliability) and construct validity. These results show that EHP-30 Portuguese is an adequate instrument for quality of life evaluation in Brazilian women with endometriosis, both in clinical and research setting.

Quantification of the impact of endometriosis symptoms on health-related quality of life and work productivity

“…The endometriosis-specific surveys EHP-30/EHP-5 have been translated and validated in several populations (25, 30, 31, 44); however, these valuable instruments have not been widely used. A literature search identified only three studies using these instruments (32, 45, 46).…”

Interrelationships among endometriosis-related pain symptoms and their effects on health-related quality of life: a sectional observational study

“…Concerning HRQoL, the full validated Brazilian versions of two self-reported HRQoL questionnaires were applied: the SF36 (more general) and the EHP30 (focusing on endometriosis-related complaints). The SF36 and EHP30 questionnaires have been the most often used and most specific tools for assessing HRQoL in women with endometriosis [ 19 20 ].…”

Validação do questionário de qualidade de vida na úlcera venosa crônica em língua portuguesa (Charing Cross Venous Ulcer Questionnaire – CCVUQ-Brasil)

“…Another study has suggested that for analysis of internal consistency the sample should be proportional to the number of questions. 2 With regard to this recommendation, it can be stated that the present study employed a sample comprising more people than the 21 questions contained in the CCVUQ questionnaire, thereby exceeding the minimum level desirable.…”

“…The validation process verifies whether an adapted instrument has maintained the characteristics of the original version 1 and is performed to ensure that a questionnaire is understandable and relevant in a new cultural context. 2 An adequate validation process must test psychometric properties 3 and analyze internal consistency, interobserver and intraobserver reproducibility 4 and validity. 1 Internal consistency is the extent to which the items that make up a given scale measure the same unobservable theoretical concept (construct).…”