Texture analysis of cartilage T2 maps: individuals with risk factors for OA have higher and more heterogeneous knee cartilage MR T2 compared to normal controls - data from the osteoarthritis initiative

Table 4 Prevalence of focal knee abnormalities in the incidence and control groups

Lesion	Control group ^a (n = 53)	Incidence group ^a (n = 92)	Odds ratio ^b	95% confidence interval
Cartilage
WORMS >0	33 (73.3%)	59 (67.0%)	0.83	0.36	1.88
WORMS ≥2	19 (42.2%)	44 (50.0%)	1.42	0.66	3.05
Bone marrow lesions	19 (42.2%)	29 (32.9%)	0.64	0.29	1.40
Meniscus
WORMS >0	18 (40.0%)	42 (47.7%)	1.52	0.71	3.30
WORMS ≥2	9 (15.5%)	22 (25.0%)	2.16	0.73	6.35

^aEight subjects from the control group and four subjects from the incidence group did not have whole-organ magnetic resonance imaging score (WORMS) readings available. ^bAll P values were greater than 0.05 using a logistic regression both when unadjusted and when adjusted for age, body mass index, and gender.

ISSN: 1478-6362