Table 2

Baseline measures of individual standardized cartilage biomarkers and their respective prediction of subsequent cartilage loss on magnetic resonance imaging


Unadjusted OR (95% CI)
R2
AUC
P value
Adjusted ORa (95% CI)

COMP
6.09 (1.34, 27.67)
0.06
0.60
0.02
6.35 (1.36–29.65)
846 epitope
0.93 (0.51, 1.71)
0.001
0.52
0.82
0.96 (0.52, 1.78)
CPII
1.19 (0.61, 2.32)
0.002
0.53
0.62
1.18 (0.60, 2.32)
C1,2C
0.69 (0.30, 1.59)
0.008
0.55
0.38
0.72 (0.31, 1.68)
Col2CTX/Cr ratio
0.99 (0.65, 1.52)
0.000
0.52
0.97
0.95 (0.61, 1.47)
C2C
0.39 (0.13, 1.13)
0.03
0.58
0.08
0.4 (0.14, 1.17)

aAdjusted for age, gender, and body mass index. AUC, area under the curve; C2C, collagenase cleavage of triple-helical type II collagen; CI, confidence interval; Col2CTx, crosslinked peptides from the C-telopeptide domain of type II collagen; COMP, Cartilage Oligomeric Matrix Protein; CPII, C-propeptide of type II collagen; OR, odds ratio.

Hunter et al. Arthritis Research & Therapy 2007 9:R108   doi:10.1186/ar2314