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ABSTRACT Background: Health-related quality of life is frequently used as an outcome measure that improves the quality of care. The SF-36 and RAND-36 were derived from the Medical Outcomes Study. Objective The present study aimed to validate the RAND-36 in Brazil, in healthy individuals and patients with liver disease. Methods: Confirmatory factor analysis (CFA) was conducted by using JASP Software. The parameters of the items were estimated using the Robust Diagonally Weighted Least Squares (RDWLS) approach. Comparative fit index (CFI), Goodness-of-fit index (GFI), Tucker-Lewis Index (TLI) and the root mean square error of approximation (RMSEA) were evaluated. Internal consistency was measured using the Composite reliability index. Convergent validity between RAND-36 domains and Work Ability Index (WAI) was conducted. Results: This validation study included 763 individuals, 400 (52.4%) with chronic liver disease. The most prevalent liver diseases were hepatitis C (13.9%), alcoholic liver disease (11.8%), and steatosis (12.1%). The measurement model tested using the CFA obtained the following adjustment indicators: X2 (df): 599.65 (498); CFI: 0.998; GFI: 0.998; TLI: 0.998; RMSEA: 0.016 (90%CI: 0.011-.021). Convergent validity of RAND-36 and total WAI ranged from medium to large correlation. Conclusion: The RAND-36 is effective in measuring the perception of health-related quality of life in individuals with and without chronic liver disease. The results of our study support the developer's claims for the reliability of the RAND-36 version 1 as a measure of health-related quality of life. The evidence for the construct validity of the RAND-36 was substantial.
RESUMO Contexto: A qualidade de vida relacionada à saúde é frequentemente usada como uma medida de resultado que melhora a qualidade da atenção à saúde. O SF-36 e o RAND-36 foram derivados do Medical Outcomes Study. Objetivo O presente estudo teve como objetivo validar o RAND-36 no Brasil, em indivíduos saudáveis e pacientes com doença hepática. Métodos: A análise fatorial confirmatória (AFC) foi realizada usando o software JASP. Os parâmetros do elemento foram estimados usando o método Robust Diagonally Weighted Least Squares (RDWLS). O índice de ajuste comparativo (CFI), o índice de adequação (GFI), o índice de Tucker-Lewis (TLI) e o erro quadrático médio de aproximação (RMSEA) foram avaliados. A consistência interna foi medida pelo índice de confiabilidade composta. A validade convergente foi realizada entre os domínios do RAND-36 e o Índice de Capacidade para o Trabalho (ICT). Resultados : Este estudo de validação incluiu 763 indivíduos, 400 (52,4%) com doença hepática crônica. As doenças hepáticas mais prevalentes foram hepatite C (13,9%), doença alcoólica do fígado (11,8%) e esteatose (12,1%). O modelo de medida testado com a AFC obteve os seguintes indicadores de ajuste: X2 (gl): 599,65 (498); CFI: 0,998; GFI: 0,998; TLI: 0,998; RMSEA: 0,016 (90%CI: 0,011-0,021). A validade convergente do RAND-36 e do ICT total variou de média a grande correlação. Conclusão: O RAND-36 é eficaz para medir a percepção da qualidade de vida relacionada à saúde em indivíduos com e sem doença hepática crônica. Os resultados do nosso estudo apoiam as afirmações dos desenvolvedores sobre a confiabilidade do RAND-36 versão 1 como uma medida de qualidade de vida relacionada à saúde. A evidência para a validade do construto do RAND-36 foi substancial.
ABSTRACT
ABSTRACT Background: COVID-19 pandemic caused increased workload and stress for health professionals involved in the care of such patients. We aimed to describe the health-related quality of life, and burnout in frontline physicians diagnosed with anxiety during the COVID-19 pandemic. Methods: This was a cross-sectional study conducted during the first-wave phase of COVID19, from September to October 2020. Questionnaires were sent electronically to 450 physicians from State of Bahia, assessing symptoms of anxiety, health-related quality of life (HRQOL) and burnout syndrome. For the categorical variables, the Pearson's chi-square test was used and difference between means was compare using the Mann-Whitney test. was Groups with and without anxiety symptoms were compared using prevalence ratios (PR). Pearson's correlation measured the correlation between WHOQOL-BREF and MBI (Maslach Burnout Inventory) domains. The Fisher r-to-z transformation was used to assess the significance of the difference between two correlation coefficients. The significance level was <0.05. Results: Out of the 450 physicians, 223 (49,6%) completely answered the questionnaire and 38 (17%) showed symptoms of anxiety. Physicians with anxiety had higher scores in emotional exhaustion (EE) (38.31 ± 8.59 vs 25.31±0.87; p = 0.0001) and depersonalization (DP) (9.0 ± 5.6 vs 5.9 ± 5.3; p = 0.001) domains, and lower scores in personal accomplishment (PA) (32.1 ± 8.2 vs 36.3 ± 7.6; p = 0.004), than those without anxiety. All correlations between WHOQOL-BREF domains and MBI in physicians without anxiety were significant (p = 0.01). Conclusion: Physicians with anxiety showed more emotional exhaustion, less personal accomplishment, and lower quality of life. All domains of WHOQOL BREF were correlated with all MBI domains among physicians without anxiety. Differences in correlation according to anxiety were remarkable in psychological HOQOL BREF domain and emotional exhaustion and depersonalization MBI domains. The effect of anxiety leading to poorer levels of perceived health needs to be further investigated.