Table 2.

Proportion of patient improvement in WOMAC pain subscale compared with baseline

	Week 6, No. (%)	Week 12, No. (%)		Week 24, No. (%)
		1 Injection (N = 9)	2 Injections (N = 11)	1 Injection (N = 9)	2 Injections (N = 11)
≥20% improvement	11 (55)	8 (89)	10 (91)	8 (89)	9 (82)
≥30% improvement	10 (50)	7 (78)	9 (82)	7 (78)	7 (64)
≥40% improvement	6 (30)	6 (67)	6 (55)	6 (67)	7 (64)
≥50% improvement	5 (25)	5 (56)	4 (36)	5 (56)	5 (46)

WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.