Preditores de qualidade de vida em pacientes tratados por diálise no sul do Brasil

CONTEXT AND OBJECTIVE: Quality of life (QoL) is considered important as an outcome measurement, especially for long-term diseases such as chronic renal failure. The present study searched for predictors of QoL in a sample of patients undergoing dialysis in southern Brazil.DESIGN AND SETTING: This was a cross-sectional study developed in three southern Brazilian dialysis facilities.METHODS: Health-related QoL of patients on hemodialysis or peritoneal dialysis was measured using the generic Short Form-36 (SF-36) health survey questionnaire. The results were correlated with sociodemographic, clinical and laboratory variables. The analysis was adjusted through multiple linear regression.RESULTS: A total of 140 patients were assessed: 94 on hemodialysis and 46 on peritoneal dialysis. The mean age was 54.2 +/- 15.4 years, 48% were men and 76% were white. The predictors of higher (better) physical component summary in SF-36 were: younger age (beta -0.16; 95% confidence interval, Cl: -0.27 to -0.05), shorter time on dialysis (beta -0.06; 95% Cl: -0.09 to -0.02) and lower Khan comorbidity-age index (beta 5.16; 95% Cl: 1.7-8.6). The predictors of higher mental component summary were: being employed (0 8.4; 95% Cl: 1.7-15.1), being married or having a marriage-like relationship (beta 4.56; 95% Cl: 0.9-8.2), being on peritoneal dialysis (beta 4.9; 95% Cl: 0.9-8.8) and not having high blood pressure (beta 3.9; 95% Cl: 0.3-7.6).CONCLUSIONS: Age, comorbidity and length of time on dialysis were the main predictors of physical QoL, whereas socioeconomic issues especially determined mental QoL.PIC/UCPELUniv Catolica Pelotas, Hlth Sch, Pelotas, RS, BrazilUniv Fed Sao Paulo, Postgrad Program Nephrol, Sao Paulo, BrazilUniv Fed Rio Grande do Sul, HCPA, Porto Alegre, RS, BrazilHosp Banco Olhos, Porto Alegre, RS, BrazilUniv Catolica Pelotas, Hosp Univ Sao Francisco Paulo, Pelotas, RS, BrazilUniv Fed Sao Paulo, Postgrad Program Nephrol, Sao Paulo, BrazilPIC/UCPEL: 45424Web of Scienc