Yanyu Decoction for Aged Patients with Stable Coronary Artery Disease: A Systematic Review and Meta-Analysis

Table 1

Characteristics of the included trials.

References	Number of subjects		Intervention		Age: Mean ± SD		Male/Female		Treatment duration
	E	C	E	C	E	C	E	C
Chen et al. [15]	278	278	YD	CPT	69^† (60–82)	72^† (61–88)	171/107	163/115	30d
Chen [16]	18	18	YD	CPT	68.54 ± 4.14 (62–78)	68.98 ± 4.76 (61–79)	10/8	11/7	30d
Liu [5]	52	52	YD	CPT	67.5 ± 11.3 (62–78)	68.5 ± 12.6 (60–79)	33/19	35/17	30d
Liu [18]	36	36	YD	CPT	66.5 ± 1.2 (61–77)	67.9 ± 2.5 (60–78)	22/14	20/16	1M
Wang and Yang [19]	40	40	YD	CPT	68.0 ± 4.0 (61–79)	68.2 ± 6.5 (62–77)	22/18	23/17	28d

C = control group, YD = Yanyu decoction, d = days, E = experiment group, M = month, NA = not applicable, CPT = conventional pharmaceutical treatment, SD = standard deviation, y = years, ^†Median, range. YD: Stigma Maydis 60 g, Corydalis Rhizoma 30 g, Fructus Trichosanthis 15 g and Allium Macrostemon 15 g, 1 dose/day, bid.