Table 1: Knee osteoarthritis phenotypes based on societal recommendations demographics, mechanics or injury, associate musculoskeletal conditions, joint components.

Phenotype Group	References	PMIDs
Society Recommendations	4, 11	25952342, 25596322
Demographic characteristics
Height and weight	12-15,	26312543, 22662293, 18174218, 22595228
Sex	16	25447976
Race and ethnicity, knee	17-21	3381825, 8605262, 8317437, 17216685, 10555031
Age	22-28	1468204, 12209513, 3572588, 1954224, 11852229, 20129196, 10947951
Mechanical characteristics
Knee mechanics	29-33	22995753, 26017348, 2010844, 27499317, 27185958
Knee injury	34-36	26521728, 21663852, 8998861
Acetabular and femoral head morphology	37-42	3780093, 27583059, 22730371, 23850552, 10608388, 26139655
Race and ethnicity, hip	42	26620089
Associated musculoskeletal characteristics
Bone density and insufficiency fracture	44-48	14510760, 9818663, 25234658, 25280553
Functional limitations	49, 50	23114857, 26113741
OA other joints and spine	51	24132356
Joint tissues characteristics
Knee tissue components	52-56	25940432, 20070426, 14872335, 27111771, 26455999
Phenotype Validation	1	28847624