. 2021 Apr 17;13(1 Suppl):1465S–1473S. doi: 10.1177/19476035211007919

Table 3.

Intra- and Interobserver Agreement for Cartilage Damage, Radiographic Severity, and Symptomatic Severity Assessment Outcomes.

Variables	ICC (95% CI)
Variables	Intraobserver	Interobserver
Cartilage damage score	0.869 (0.805, 0.932)	0.882 (0.817, 0.945)
KL grade	0.847 (0.772, 0.904)	0.915 (0.863, 0.952)
WOMAC score	0.835 (0.769, 0.893)	0.791 (0.752, 0.849)

ICC, intraclass correlation coefficient; CI, confidence interval; KL, Kellgren-Lawrence; WOMAC, Western Ontario McMaster University Osteoarthritis Index.