Figure 1From: Disturbance of the OPG/RANK/RANKL pathway and systemic inflammation in COPD patients with emphysema and osteoporosisRelationship between the average BMD of lumbar spine bones and bilateral femoral necks. The average BMD of femoral neck showed a good correlation with lumbar vertebra (Average BMD of lumbar spine bones = 0.718 × Average BMD of bilateral femoral necks +336.46;r = 0.959; p < 0.0001).Back to article page