Efficacy of Guhong injection versus Butylphthalide and Sodium Chloride Injection for mild ischemic stroke: A multicenter controlled study

Table 3 Changes in baseline total National Institutes of Health stroke scale scores at each follow-up visit

	Experimental group (n = 198)	Control group (n = 201)	Rank-sum test	P value
Baseline (day 0)	3.40 ± 2.08	3.63 ± 2.72	0.495	0.621
Visit 1 (days 7 ± 2)	1.75 ± 2.03	2.34 ± 2.37	1.588	0.056
Relative to baseline	-1.67 ± 2.11	-1.25 ± 2.62	300.727	< 0.0001
Visit 2 (days 14 ± 2)	1.65 ± 1.90	2.45 ± 2.26	8.138	< 0.0001
Relative to baseline	-2.33 ± 2.33	-1.45 ± 2.36	222.404	< 0.0001
Visit 3 (days 21 ± 3)	2.33 ± 1.63	5.0 ± 3.54	2.207	0.016
Relative to baseline	-2.50 ± 2.32	-1.67 ± 4.12	16.19	< 0.0001