Fig. 1

Comparison of the degeneration status of lumbar disc and facet joint in individuals from each group. a Lipid abnormal (LA) over lipid healthy (LH) ratio; b subject percentage with disc degeneration; c degenerated disc percentage; d severe over slight ratio in the disc degeneration grade; e severe over slight ratio in the facet joint degeneration grade. OB obesity, LH-NO lipid healthy but no obese, LH-O lipid healthy but obese, LA-NO lipid abnormal but no obese, LA–O lipid abnormal and obese. *Means P < 0.05 versus indicated groups