Changes in rheumatoid arthritis under ultrasound before and after sinomenine injection

Table 2 Comparison of synovial membrane thickness and visual analog scale scores

Timing	Group	Number of cases	Synovial thickness (mm, mean ± SD)	VAS score (mean ± SD)
Before treatment	Study group	47	5.29 ± 1.44	7.01 ± 1.38
	Control group	47	5.50 ± 1.32	6.89 ± 1.50
	t value		0.737	0.404
	P value		0.463	0.687
After treatment	Study group	47	2.05 ± 0.59	2.11 ± 0.62
	Control group	47	2.87 ± 0.64	2.90 ± 0.79
	t value		6.458	5.393
	P value		0.000	0.000

VAS: Visual analog scale.