Table 3 Relation between increasing grade of severity of subchondral bone abnormality and tibial cartilage volume

Medial tibial cartilage volume^a

1,923

(1,808, 2,038)

1,809

(1,640, 1,979)

1,589

(1,442, 1,735)

0.004

Lateral tibial cartilage volume^b

2,132

(2,028, 2,236)

1,962

(1,616, 2,309)

1,607

(1,399, 1,817)

<0.001

Medial tibial cartilage volume loss^a

2.62

(0.82, 4.42)

6.30

(3.43, 9.17)

9.26

(6.78, 11.73)

<0.001

Lateral tibial cartilage volume loss^b

5.88

(4.18, 7.59)

7.19

(1.46, 12.93)

2.42

(-1.00, 5.84)

0.17