Table 3.

Severity of knee abnormalities in subjects stratified by sex. Severity presented as median (interquartile range) for subjects with any abnormality, i.e. WORMS score ≥ 1, for each feature. P-values are from Mann Whitney U tests of scores from all subjects in each sex group

	Baseline					Follow-up
	Males (n = 17)		Females (n = 19)			Males (n = 17)		Females (n = 19)
	n	Severity	n	Severity	p-value	n	Severity	n	Severity	p-value
Cartilage abnormalities	6	5 (4.3, 5)	6	2.8 (1.4, 3)	0.438	7	5 (4.5, 5.5)	6	3 (1.5, 4.5)	0.328
Bone marrow lesions	7	2 (1.5, 2)	5	1 (1, 1)	0.204	7	2 (1.5, 3)	7	1 (1, 1.5)	0.457
Subarticular cysts	4	1.5 (1, 2)	3	1 (1,2)	0.535	4	1.5 (1, 2)	3	1 (1, 1.5)	0.535
Osteophytes	15	3 (2, 4)	19	2 (1, 2)	0.462	15	2 (2, 4.5)	19	2 (1, 2.5)	0.279
Ligamentous lesions	2	0.8 (0.6, 0.9)	0	–	0.129	2	0.8 (0.6, 0.9)	0	–	0.129
Meniscal lesions	6	1.5 (1, 2.8)	9	2 (1, 2)	0.51	7	2 (1, 2)	9	2 (1, 2)	0.843