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Table 4 Cross-sectional and longitudinal associations between size of LDH, dural sac area and disc height

From: Progression of lumbar disc herniations over an eight-year period in a group of adult Danes from the general population – a longitudinal MRI study using quantitative measures

  β-coefficient (95% CI) P-value
LDH→Disc height
 Cross-sectional 0.353 (0.142; 0.564) 0.001
 Four-year change −0.413 (−0.603; −0.224) 0.000
 Eight-year change −0.504 (−0.807; −0.201) 0.001
LDH→Dural sac
 Cross-sectional −0.254 (−0.515; 0.007) 0.057
 Four-year change −0.130 (−0.262; 0.003) 0.055
 Eight-year change −0.354 (−0.581; −0.128) 0.003
Disc height→Dural sac
 Cross-sectional 0.282 (0.158; 0.406) 0.000
 Four-year change −0.041 (−0.102; 0.020) 0.189
 Eight-year change 0.005 (−0.112; 0.122) 0.935
LDH & disc height (multivariable regression) → Dural sac
 Cross-sectional LDH −0.364 (−0.621; −0.107) 0.006
Disc height 0.312 (0.187; 0.436) 0.000
 Four-year change LDH −0.112 (−0.253; 0.028) 0.114
Disc height −0.240 (−0.088; 0.040) 0.462
 Eight-year change LDH −0.405 (−0.645; −0.165) 0.001
Disc height 0.072 (−0.045; 0.189) 0.222
  1. Presented as regression coefficients for sizes of LDH with corresponding 95% confidence intervals, for both univariate and multiple linear regression. Significant associations are shown in bold