Table 3 Associations between increasing grade of disc degeneration (grades 2 to 4) and intervertebral disc height in mm at the corresponding level

L1/2

−0.98 (−1.61, −0.36)

0.002

−0.98 (−1.65, −0.31)

0.005

L2/3

−1.53 (−2.09, −0.96)

<0.001

−1.38 (−2.07, −0.69)

<0.001

L3/4

−1.61 (−2.26, −0.96)

<0.001

−1.60 (−2.37, −0.83)

<0.001

L4/5

−1.32 (−2.10, −0.54)

0.001

−1.36 (−2.32, −0.39)

0.006

L5/S1

−1.23 (−2.00, −0.46)

0.002

−1.21 (−2.10, −0.32)

0.009