Table 2.

Comparison of distributions of the BMD categories between patients with knee osteoarthritis and healthy controls.

	Osteoarthritis n = 239	Healthy Controls n = 239	p Value
Femur BMD T-scores, n (%)			0.173
Normal	54 (22.6)	69 (28.9)
Osteopenia	137 (57.3)	125 (52.3)
Osteoporosis	48 (20.1)	45 (18.8)
Lumbar BMD T-scores, n (%)			0.084
Normal	49 (20.8)	66 (28)
Osteopenia	113 (47.9)	95 (40.3)
Osteoporosis	74 (31.4)	75 (31.8)

Statistical analysis was performed using the test of marginal homogeneity. BMD, bone mineral density.