Table 4.

Prevalence of knee abnormalities in subjects stratified by age group. Cartilage lesions and osteophytes were considered present for a WORMS score ≥ 2, and all other features were considered present for a WORMS score ≥ 1. Data presented as number of subjects (percentage of group)

	Baseline			Follow-up
	Adolescents (n = 18)	Adults (n = 18)	p-value	Adolescents (n = 18)	Adults (n = 18)	p-value
Cartilage lesions	0 (0)	10 (56)	<0.001	0 (0)	10 (56)	<0.001
Bone marrow lesions	4 (22)	8 (44)	0.289	3 (17)	11 (61)	0.0153
Subarticular cysts	2 (11)	5 (28)	0.402	2 (11)	5 (28)	0.402
Osteophytes	7 (39)	17 (94)	0.001	10 (56)	18 (100)	0.003
Ligamentous lesions	0 (0)	2 (11)	0.486	0 (0)	2 (11)	0.486
Meniscal lesions	5 (28)	10 (56)	0.176	5 (28)	11 (61)	0.0922

P-values presented in bold capture demonstrate significance (p < 0.05)