Age, hemodialysis time, gait speed, but not mortality, are associated with muscle quality index in end-stage renal disease.

Background: The muscle quality index (MQI) has proven to be an interesting clinical measurement in hemodialysis (HD) patients. In clinical practice, its interpretation can be biased by fat mass (FM) distribution. This study aims to explore the arm MQI association with body composition, clinical factors, and mortality.