The EQ-5D is a standardized tool used to measure health-related quality of life. It consists of a simple questionnaire that assesses five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Respondents rate their health status on a scale, which helps in understanding the impact of health conditions on daily life. This tool is widely used in clinical trials, health economics, and public health research. The EQ-5D provides valuable data for comparing the effectiveness of treatments and interventions, making it an essential resource for healthcare professionals and policymakers in improving patient outcomes.