Adaptation and Validation of the Spine Oncology Study Group Outcomes Questionnaire in Italian Language

Abstract

Study design Prospective observational study Objective The population of patients with advanced stages of cancer, including metastatic spinal disease, is growing because of better treatment options allowing for longer control of disease. The main goal of treatment for these patients is to improve or maintain their health-related quality of life (HRQOL). A spine oncology-specific outcome measure has been developed by the Spine Oncology Study Group and validated through international studies. We proposed to translate and validate the questionnaire in Italian language. Methods The cross-cultural adaptation of the questionnaire has been performed according to guidelines previously proposed. After this process, an observational prospective study has been conducted to validate the efficacy of SOSGOQ in Italian language. SOSGOQ has been compared to SF-36 (Short Form Health Survey-36), a generic validated questionnaire to assess HRQOL. Starting from January 2020, SOSGOQ and SF-36 questionnaires were auto-administered to 150 patients affected by spinal metastases who provided written informed consent for study participation. Results The confirmatory factor analysis on the 4 domains examined showed a good model fit (comparative fit index, .95; RMSEA .07 (90% CI, .05-.09) and SRMR, .05), endorsing construct validity. The analysis of concurrent validity demonstrated strong correlation for physical function, pain and mental health domains with the corresponding domain scores of SF-36. The reliability across item was high with a Cronbach’s alpha coefficient of .91. Conclusions The statistical analysis of the results will allow to accept the Italian version of SOSGOQ as a specific and efficient tool to measure HRQOL in Italian-speaking patients affected by spinal metastases.

Tradução e adaptação transcultural do questionário SOSG-OQ 2.0 para o português brasileiro

“…Luksanapruksa et al 32 performed the translation and cross-cultural adaptation into Thai, and they reported that the domains pf the translated version maintained a high internal consistency (Cronbach alpha > 0.7) and that the questionnaire presented a strong correlation with the 5-Level EQ-5D (EQ-5D-5L). Likewise, Brodano et al 33 reported the validity of the Italian version in terms of the internal domains and their correlation with the SF-36 subdomains, as well as a high consistency among questionnaire items.…”

“…Luksanapruksa et al 32 realizaram a tradução e adaptação transcultural para o tailandês, e demonstraram que os domínios da versão traduzida mantiveram uma alta consistência interna (alpha de Cronbach > 0.7), e que o questionário manteve forte correlação com as pontuações obtidas na versão de 5 níveis do EQ-5D (EQ-5D-5L). Da mesma forma, Brodano et al, 33 demostraram a validade da versão italiana tanto em relação aos domínios internos quanto à sua correlação com os subdomínios do SF-36, além da alta consistência entre os itens do questionário.…”

Establishing the Swiss Spinal Tumor Registry (Swiss-STR): a prospective observation of surgical treatment patterns and long-term outcomes in patients with primary and metastatic spinal tumors

“…This 27-question survey covers six dimensions that include pain, mental health, social interaction, bowel and bladder function, physical activity and neurological function. To date, validated translations of the English SOSG-OQ2.0 are available in Italian, Thai, Chinese, Dutch, and German (23)(24)(25)(26)(27); the latter is used for our registry. The EuroQol-5 Dimensions Questionnaire (EQ-5D) is a well known and widely used tool of 5 questions covering 5 dimensions, namely ambulation, autonomy, activities of daily life, pain, and psychological situation.…”

Assessing Cross-Cultural Adaptation of the Spine Oncology Study Group Outcomes Questionnaire 2.0: A Methodological Systematic Review Regard to Consensus-Based Standards for the Selection of Health Measurement Instruments Guideline

“…The SOSGOQ 2.0 had been cross-cultural translated into Italian, German, Thai, simple Chinese and Dutch. [5][6][7][8][9] Due to the cultural difference, a direct simple translation of the original questionnaire often can't guarantee similar measurement properties, and the rough translation may lead to bias to impact the validity of cross-cultural adaptation. Consequently, methodological considerations are important in crosscultural comparisons, the process of cross-cultural adaptation should be followed, as well as the measurement properties should be used to assess.…”