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Table 8 Twenty-four month change in semi-quantitative MRI biomarkers – osteophytes

From: Semi-quantitative MRI biomarkers of knee osteoarthritis progression in the FNIH biomarkers consortium cohort − Methodologic aspects and definition of change

MRI feature

Biomarker

Overall n (%)

Controls

Cases

p-value

Osteophytes

24 M Increase in number of locations affected by any osteophyte

   

0.386

 No

544 (91 %)

371 (91.4 %)

173 (89.2 %)

 

 Yes

56 (9 %)

35 (8.6 %)

21 (10.8 %)

 
 

24 M Change in number of locations affected by any Osteophyte

   

0.585

 No Change

544 (91 %)

371 (91.4 %)

173 (89.2 %)

 

 Worsen in 1 subregion

32 (5 %)

21 (5.2 %)

11 (5.7 %)

 

 Worsen in 2+ subregions

24 (4 %)

14 (3.4 %)

10 (5.2 %)

 
 

24 M Max change in osteophyte score across all locations in knee

    

 0

498 (83 %)

347 (85.5 %)

151 (77.8 %)

 

 1

97 (16 %)

55 (13.5 %)

42 (21.6 %)

 

 2

5 (1 %)

4 (1.0 %)

1 (0.5 %)

 
 

24 M Max change in osteophyte score > =1 across all locations in knee

   

0.021*

 No

498 (83 %)

347 (85.5 %)

151 (77.8 %)

 

 Yes

102 (17 %)

59 (14.5 %)

43 (22.2 %)

 
  1. *statistically significant at p < 0.05; p values refer to differences between cases and controls across all grades