TRANSLATION, CROSS-CULTURAL ADAPTATION AND VALIDITY OF CONSTRUCTION OF THE ASSESSMENT OF HEALTH RELATED QUALITY OF LIFE IN OSTEOPOROSIS (ECOS-16) QUESTIONNAIRE FOR BRAZIL
Translation, Validation studies, cross-cultural comparison, osteoporosis.
Introduction: Osteoporosis is an important public health problem worldwide, this disease is characterized by a decrease in Bone Mineral Density (BMD), which causes fragility in bone tissue, contributing to the development of fractures. Among the risk factors are: Advanced age, genetic factors and nutritional deficiencies, 25% of people with osteoporosis refer to postmenopausal women, with a prevalence of lumbar osteoporosis between 15.8% to 54.5%. The Assessment of Health related Quality of Life in Osteoporosis (ECOS-16) questionnaire is a tool aimed at measuring the quality of life of women with postmenopausal osteoporosis. The questionnaire contains 16 items present in four subscales. Objective: To translate, adapt to Brazilian culture and test the validity of the Assessment of Health related Quality of Life in Osteoporosis (ECOS-16) questionnaire. Methods: This is a cross-sectional study carried out in two stages: Translate into Portuguese and carry out the cross-cultural adaptation of the ECOS-16; and to test the validity of the construct for the Brazilian population. Fifty-six women diagnosed with postmenopausal lumbar osteoporosis participated in the study. The research was approved by the Research Ethics Committee and the participants were contacted via Facebook, Instagram, WhatsApp and email, the questionnaire was made available via Google Forms along with the Free and Informed Consent Term (ICF). The validity of the questionnaire was tested by internal consistency analysis using Cronbach's Alpha and Spearman's correlation test to verify the correlation between ECOS-16, SF-36 and END using SPSS version 26.0. Results: Of the 63 women who responded to the questionnaire, 5 did not meet the inclusion criteria and 2 did not complete the questionnaire in full. ); married (42%), with complete postgraduate studies (42%); white race (64%); with an income of 3 to 6 minimum wages (33%) and with a time of diagnosis of the disease of 54 months. The internal consistency of ECOS 16 analyzed using Cronbach's alpha (0.94) indicated good internal consistency, the correlation of each item with its subscale showed substantial correlations. The analysis showed significant correlations between all subscales of ECOS 16 and SF-36 (p-value <0.64) and END (p-value 0.69). Conclusion: The ECOS 16 was translated and culturally adapted to the Portuguese language, and the findings show that the questionnaire is a valid and reliable measure to assess the quality of life of women with postmenopausal lumbar osteoporosis.