. Author manuscript; available in PMC: 2023 Feb 1.

Published in final edited form as: Arthritis Rheumatol. 2021 Dec 30;74(2):223–226. doi: 10.1002/art.42031

Table 2.

Rate of radiographic progression

	Rate Ratio^* of Progression: CSI vs HAI (95% CI)

Joint space narrowing (JSN)	1.00	(0.83 – 1.21)
Kellgren and Lawrence grade (KL)	1.03	(0.83 – 1.29)
Medial joint space width (JSW250)^¶	1.03	(0.72 – 1.48)

Reported as difference in rates, positive value denotes higher value for progression of corticosteroid injection. Analyses adjusted for age, sex, BMI, study of origin and baseline KL grade.

^¶

JSW250 calculated using only OAI data, progression defined as difference > 0.5 mm.