The Usefulness of Xuefu Zhuyu Tang for Patients with Angina Pectoris: A Meta-Analysis and Systematic Review

Table 5

The effect of XFZYT for UAP group, outcome = ECG.

Study ID	Treatment duration	Response rate, %; (response/)		Therapeutic gain, %	NNT	RR
		Experimental	Control
Zheng and Wang, 2009 [24]	8 weeks	76.7 (23/30)	63.3 (19/30)	13.4	7.5	1.21
Pooled RR	—	76.7 (23/30)	63.3 (19/30)	13.4	7.5	1.21

NNT: number needed to treat; RR: risk ratio.