. 2015 Aug 25;474(2):467–478. doi: 10.1007/s11999-015-4522-4

Table 5.

Spearman’s rank correlations and 95% confidence intervals for the modified Outerbridge grade versus the dGEMRIC index

Acetabular cartilage subregion	No map	With map	No map versus with map difference
AP	−0.55 (−0.72 to −0.31) p < 0.001	−0.71 (−0.83 to −0.53) p < 0.001	p_diff = 0.12
AC	−0.41 (−0.62 to −0.14) p = 0.005	−0.79 (−0.88 to −0.65) p < 0.001	p_diff < 0.001
SP	−0.71 (−0.83 to −0.53) p < 0.001	−0.77 (−0.87 to −0.62) p < 0.001	p_diff = 0.39
SC	−0.75 (−0.85 to −0.58) p < 0.001	−0.71 (−0.83 to −0.53) p < 0.001	p_diff = 0.59
PP	−0.58 (−0.74 to −0.35) p < 0.001	−0.51 (−0.69 to −0.26) p < 0.001	p_diff = 0.58
PC	−0.32 (−0.56 to −0.04) p = .03	−0.52 (−0.70 to −0.27) p < 0.001	p_diff = 0.24

dGEMRIC = delayed gadolinium-enhanced MRI of cartilage; AP = anterior-peripheral; AC = anterior-central; SP = superior-peripheral; SC = superior-central; PP = posterior-peripheral; PC = posterior-central.