Table 1.

Basic information of the OA, OP-OA, and NC groups.

	OA	OP-OA	NC	p-Value OA vs. OP-OA
N	11	13	7	–
Sex (male/female)	7/4	6/7	4/3	–
Age (years)	54.64 ± 13.68	72.08 ± 7.50	61.86 ± 22.93	0.006**
Height (cm)	164.73 ± 7.42	155.62 ± 7.18b	165.14 ± 7.13	0.005**
Weight (kg)	64.55 ± 11.64	53.00 ± 10.34b	64.86 ± 4.30	0.008**
BMI (kg/m2)	23.64 ± 2.75	21.78 ± 3.15	23.89 ± 2.59	0.127
K–L grade (K–L III/IV)	6/5	7/6	0/0	–
Femur T-value	−0.27 ± 1.09	−2.97 ± 0.41b	−0.90 ± 0.88	<0.001**
Lumbar T-value	−0.54 ± 0.97	−3.26 ± 0.57b	−0.66 ± 1.51	<0.001**
Femur BMD (g/cm2)	0.91 ± 0.14	0.61 ± 0.11b	0.80 ± 0.08	<0.001**
Lumbar BMD (g/cm2)	0.93 ± 0.10	0.69 ± 0.11b	0.92 ± 0.15	<0.001**

Symbol “*” indicates comparisons between OA and OP-OA group.

^*Indicates p < 0.05.

^**Indicates p < 0.01.

^ap < 0.05 between OA and NC group.

^bp < 0.05 between OP-OA and NC group.