Changes in rheumatoid arthritis under ultrasound before and after sinomenine injection

Table 4 Comparison of arthro-inflammatory indexes (mean ± SD)

Timing	Group	Number of cases	RF (U/mL)	CRP (mg/L)	ESR (mm/h)
Beforetreatment	Study group	47	161.39 ± 15.06	34.10 ± 6.99	80.71 ± 7.11
	Control group	47	158.91 ± 12.79	32.63 ± 7.29	78.65 ± 6.70
	t value		0.861	0.998	1.446
	P value		0.392	0.321	0.152
Aftertreatment	Study group	47	55.61 ± 6.13	11.43 ± 3.59	29.60 ± 5.56
	Control group	47	73.04 ± 9.23	15.07 ± 4.06	36.64 ± 6.10
	t value		10.785	4.605	5.848
	P value		0.000	0.000	0.000

RF: rheumatoid factor; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate.