CORRELATION OF THE BODY WEIGHT-WALKING DISTANCE WITH HEALTH-RELATED QUALITY OF LIFE IN PATIENTS WITH COPD: A COMPARATIVE STUDY WITH THE 6-MINUTE WALK DISTANCE

Objective: This study aimed to examine the relationship between the 6-minute walk test distance – body weight product (i.e. 6-minute walk work-6MWORK) as an improved outcome measure with health-related quality of life and to compare this relationship with the 6-minute walk test distance. Method: A total of 81 patients (mean age: 61.0±4.6 years) with moderate-to-severe COPD were included in this retrospective cross-sectional study. This study conducted between January 2025 and March 2025. The patients' clinic characteristics, lung function tests, 6-minute walk test distance, and health-related quality of life measured by Saint George Respiratory Questionnaire (SGRQ) outcomes were recorded. The 6MWORK was calculated as product of 6-minute walk test distance and body weight by multiplying each other and recorded as kg.meters (kg.m). Correlation coefficients and simple linear regressions were evaluated between SGRQ with 6-minute walk test distance and 6MWORK. Results: The mean 6-minute walk test distance and 6MWORK of patients were 441.5±83.3 m and 33176.2±9865.8 kg.m, respectively. The 6MWORK showed stronger correlations with SGRQ sub-domains (r=−.582 to −.641, p