Review Article

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

Table 3

The effect of XFZYT for SAP group, outcome = RAS.

Study ID Treatment durationResponse rate, %; (response/) Therapeutic gain, % NNT RR
ExperimentalControl

Li, 2008 [21]4 weeks95.0 (38/40)70.0 (28/40)25.04.01.36
Wang, 2011 [28]8 weeks95.0 (19/20)70.0 (14/20)25.04.01.36
Zhao, 2009 [26]4 weeks90.0 (27/30)66.7 (20/30)23.34.31.35
Yang, 2010 [18]4 weeks96.0 (48/50)74.0 (37/50)22.04.51.30
Pooled RRā€”94.3 (132/140)70.7 (99/140)23.64.21.33

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