disease stages 1 according to the Kellgren-Lawrence radiographic classification system

disease stages 2 according to the Kellgren-Lawrence radiographic classification system

disease stages 3 according to the Kellgren-Lawrence radiographic classification system

disease stages 4 according to the Kellgren-Lawrence radiographic classification system

disease stages ranged from 1 to 4 according to the Kellgren-Lawrence radiographic classification system

a 10-cm straight line with 0 on one end indicating no pain and 10 on the other end signifying unbearable pain. The participants were asked to mark the intensity of their current pain on the line

A 45-meter corridor was used for the 2MWT. The start and end points were marked, and the participants were asked to walk at a normal pace within these boundaries. The distance covered in two minutes was recorded

The questionnaire consists of 24 items, each scored from 0 to 4. The total score is obtained by summing the point equivalents of the responses given to all items. A higher score indicates poorer functionality

This tool comprises 38 questions in six domains, namely energy, pain, social isolation, physical mobility, emotional reactions, and sleep. Each domain is scored from 0 to 100. The total score is obtained by summing the scores obtained from the six domains. High scores indicate a good quality of life.