Table 1.

Baseline characteristics of patients in the three study groups.

	BM	L-OA	K-OA
Number	10	11	18
Age (years)	69 (41–80)	74 (64–85)	80 (60–83)∗
Female	4	8	14
Pain NRS score	6 (4–8)	8 (4–9)	7.5 (5–9)

Patients with K-OA were significantly older than patients with BM and L-OA. Data are presented as median (min–max); ^∗p < 0.05 versus BM and L-OA. BM, bone metastasis; L-OA, lumbar facet joint osteoarthritis; K-OA, knee osteoarthritis; NRS, numerical rating scale.