Table 3 Intra-class correlation coefficient for radiology and histopathology

Articular cartilage thickness (microns)

0.884

0.701 – 0.958

< 0.001^*

0.793

0.923 – 0.990

< 0.001^*

OARSI grade (0–6)

0.927

0.766 – 0.978

< 0.001^*

0.966

0.885 – 0.990

< 0.001^*

Synovitis (0–3)

0.830

0.512 – 0.948

< 0.001^*

0.761

0.359 – 0.925

0.001^*

Fibrosis (0–3)

0.837

0.528 – 0.950

< 0.001^*

0.837

0.528 – 0.950

< 0.001^*

Total IPF

0.950

0.835 – 0.985

< 0.001^*

0.893

0.671 – 0.968

< 0.001^*

Radiographic score

0.877

0.629 – 0.963

< 0.001^*

0.836

0.526 – 0.950

< 0.001^*