Patients with Osteoarthritis in all Three Knee Compartments and Patients with Medial Knee Osteoarthritis Have a Phenotype with High Bone Mass and High Fat Mass but Proportionally Low Lean Mass

Table 3: Z-scores data in patients with osteoarthritis (OA) inall knee compartments and localized medial OA of the knee.

		All		Women		Men
Parameter		OA in all Compartments	Medial OA	OA in all Compartments	Medial OA	OA in all Compartments	Medial OA
Antropometry		(n=39)	(n=73)	(n=21)	(n=17)	(n=18)	(n=56)
	Height	-0.0 (-0.5, 0.4)	0.1 (-0.1, 0.3)	-0.2 (-0.9, 0.6)	0.2 (-0.0, 0.7)	0.1 (-0.3, 0.6)	0.1 (-0.2, 0.3)
	Weight	1.1 (0.6, 1.6) *	1.1 (0.8, 1.4) *	1.4 (0.7, 2.2) *	1.7 (1.2, 2.3) *	0.7 (0.2, 1.2) *	0.9 (0.6, 1.2) *
	Body mass index	1.17 (0.7, 1.6) *	1.1 (0.8, 1.4) *	1.54 (0.85, 2.23) *	1.58 (1.06, 2.10) *	0.7 (0.2, 1.3) *	1.0 (0.6, 1.3) *
		(n=22)	(n=66)	(n=12)	(n=14)	(n=10)	(n=52)
	Absolut fat mass	0.5 (0.0, 1.0) *	1.1 (0.9, 1.4) *	0.9 (0.0, 1.8) *	1.8 (1.1, 2.4) *	0.0 (-0.3, 0.4)	1.0 (0.8, 1.3) *
	Absolut lean mass	-0.1 (-0.5, 0.2)	0.2 (-0.0, 0.5)	-0.1 (-0.7. 0.5)	1.24 (0.5, 2.0) *	-0.2 (-0.6, 0.3)	-1.0 (-1.23, -0.8) *
	Proportion fat mass	0.4 (0.0, 0.8) *	0.9 (0.7, 1.1) *	0.7 (0.0, 1.5) *	1.3 (0.8, 1.8) *	0.0 (-0.3, 0.3)	0.8 (0.6, 1.1) *
	Proportion lean mass	-0.6 (-1.1, -0.1) *	-0.8 (-1.3, -0.9) *	-0.8 (-1.8, 0.1)	-1.2 (-1.7, -0.8) *	-0.4 (-0.8, 0.0)	-1.0 (-1.3, -0.8) *
Bone Mineral Density		(n=22)	(n=66)	(n=12)	(n=14)	(n=10)	(n=52)
	Total body	0.4 (0.0, 0.9) *	0.4 (0.3, 0.6) *	0.9 (0.4, 1.4) *	0.7 (0.4, 1.0) *	-0.1 (-0.9, 0.7)	0.6 (0.4, 0.8) *
	Spine	0.3 (-0.1, 0.7)	0.7 (0.4, 1.0) *	0.6 (0.2, 1.1) *	1.4 (0.9, 1.9) *	-0.1 (-0.8, 0.6)	0.5 (0.2, 0.8) *
	Leg	0.1 (-0.3, 0.6)	0.4 (0.2, 0.6) *	0.5 (0.0, 1.0)	0.3 (0.0, 0.6)	-0.3 (-1.1, 0.5)	0.4 (0.2, 0.7) *
	Arm	0.5 (0.1, 1.0) *	0.3 (0.1, 0.5) *	0.9 (0.3, 1.5) *	0.5 (0.0, 0.9) *	0.1 (0.4, 0.7)	0.2 (0.0, 0.5) *
		(n=39)	(n=73)	(n=21)	(n=17)	(n=18)	(n=56)
	Hip femoral neck	0.1 (-0.2, 0.3)	0.2 (0.0, 0.3) *	0.1 (-0.2, 0.4)	0.20 (0.0, 0.4) *	0.00 (-0.5, 0.5)	0.2 (0.0, 0.4) *
	Hip Wards Triangle	0.1 (-0.3, 0.4)	0.4 (0.2, 0.6) *	0.0 (-0.4, 0.4)	0.3 (-0.1, 0.7)	0.1 (-0.5, 0.7)	0.4 (0.2, 0.1) *
	Hip trochanter	0.2 (-0.2, 0.6)	0.4 (0.3, 0.6) *	0.4 (-0.1, 0.9)	0.6 (0.3, 0.9) *	0.0 (-0.656, 0.3)	0.3 (0.2, 0.5) *

Data shown as mean with 95% CI within brackets; * statistical significant differences.