Comparison of intra-articular injection of parecoxib vs oral administration of celecoxib for the clinical efficacy in the treatment of early knee osteoarthritis

Table 2 Comparison of visual analogue scale scores and satisfaction of patients in the three groups before and after treatment

Group	Case	VAS scores		Patients’ satisfaction degree: Satisfied/unsatisfied
		Before	After
Group A	37	4.1 ± 0.7	3.4 ± 0.6	8/29
Group B	37	4.0 ± 0.6	1.8 ± 0.6	33/4
Group C	36	4.1 ± 0.7	0.8 ± 0.5	35/1
F/χ2 value		0.09	179.97	59.38
P value		0.9102	< 0.001	< 0.001

Data are presented as mean ± SD. VAS: Visual analogue scale.