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Table 1 Scoring system for subjective evaluation of arthritis severity

From: Identification and validation of hub genes of synovial tissue for patients with osteoarthritis and rheumatoid arthritis

Severity Degree of inflammation
0 No evidence of erythema and swelling
1 Erythema and mild swelling confined to the tarsals or ankle joint
2 Erythema and mild swelling extending from the ankle to the tarsals
3 Erythema and moderate swelling extending from the ankle to metatarsal joints
4 Erythema and severe swelling encompass the ankle, foot and digits, or ankylosis of the limb