Correlations between Phlegm Syndrome of Chinese Medicine and Coronary Angiography: A Systematic Review and Meta-Analysis

Table 2

Study and population characteristics of the included studies.

Number	Author, year	Age		Male/female	Thesis	Clinical setting	Method of syndrome differentiation	Syndrome overlap	Indexes of CAG
1	Wang et al., 2003 [11]	59.2 ± 7.8	158	98/60	No	Cross-sectional	CSD	No	CVN, DAS (70% as the classification)
2	Su, 2004 [12]	69.1 (unknown SD)	31	Unknown	Yes	Case-control	CSD	No	CVN
3	Zhang et al., 2004 [13]	58.5 ± 10.2	269	Unknown	No	Case-control	SED	Yes	CVN
4	Liuand Jiang, 2005 [14]	63.8 ± 9.6	259	209/50	No	Cross-sectional	CSD	No	CVN, Gensini score
5	Wang, 2005 [15]	64.6 ± 11.5	81	52/29	Yes	Cross-sectional	SED	Yes	CVN
6	Li et al., 2006 [16]	59.6 ± 10.1	96	77/19	No	Cross-sectional	CSD	No	CVN, DAS, Gensini score
7	Liu et al., 2006 [17]	65.4 ± 10.8	69	52/61	No	Cross-sectional	SED	Yes	CVN
8	Xue, 2006 [18]	Unknown	68	37/31	Yes	Cross-sectional	CSD	No	CVN, DAS, Gensini score
9	Zhang et al., 2006 [19]	57.6 (unknown SD)	279	—	No	Case-control	CSD	No	CVN
10	Guo, 2007 [20]	Unknown	147	104/43	Yes	Cross-sectional	CSD	No	CVN, DAS
11	Wang et al., 2007 [21]	Unknown	81	Unknown	No	Case-control	SED	Yes	CVN
12	Zhangand Xu, 2007 [22]	59.8 ± 12.3	126	99/27	No	Cross-sectional	CSD	No	CVN, DAS
13	Pan et al., 2008 [23]	68.0 ± 10.7	61	40/21	No	Cross-sectional	SED	Yes	CVN
14	Wang et al., 2008 [24]	58.2 ± 10.58	324	250/74	No	Cross-sectional	SED	Yes	CVN
15	Liao, 2009 [25]	Unknown	143	68/75	Yes	Cross-sectional	CSD	No	CVN, DAS
16	Wang, 2009 [26]	Unknown	100	57/43	Yes	Cross-sectional	CSD	No	CVN, Gensini score
17	Wang et al., 2009 [27]	Unknown	252	192/60	No	Cross-sectional	CSD	No	CVN, DAS
18	Wang et al., 2009 [28]	63.4 ± 11.7	229	128/101	No	Cross-sectional	SED	Yes	CVN, Gensini score
19	Zhu et al., 2009 [29]	Unknown	100	85/15	No	Cross-sectional	CSD	No	CVN, DAS
20	Du, 2010 [30]	59.6 ± 11.2	369	291/78	Yes	Cross-sectional	SED	Yes	Gensini score
21	Hou, 2010 [31]	Unknown	87	48/39	No	Cross-sectional	CSD	No	CVN, DAS, Gensini score
22	Ren et al., 2010 [32]	58.3 ± 10.7	405	307/98	No	Cross-sectional	SED	Yes	CVN, Gensini score
23	Tong, 2010 [33]	62.8 ± 9.3	97	57/40	Yes	Cross-sectional	CSD	No	CVN, DAS
24	Zhang et al., 2010 [34]	59.8 ± 12.3	368	252/116	No	Cross-sectional	CSD	No	CVN, DAS (70% as the classification), Gensini score
25	Bi et al., 2011 [35]	67.2 ± 8.3	67	Unknown	No	Cross-sectional	SED	Yes	DAS
26	Xu et al., 2011 [36]	59. 6 ± 10.1	250	200/50	No	Cross-sectional	CSD	No	CVN, Gensini score
27	Yan et al., 2011 [37]	69.0 ± 10.5	189	103/86	No	Cross-sectional	SED	Yes	CVN, DAS
28	Zhou et al., 2011 [38]	Unknown	95	73/22	No	Cross-sectional	CSD	No	CVN, DAS, Gensini score
29	Tanand Leng, 2012 [39]	Unknown	70	38/32	No	Cross-sectional	CSD	No	CVN
30	Wang et al., 2013 [40]	Unknown	150	68/82	No	Cross-sectional	CSD	No	CVN
		Total	5055

Note: CSD = conventional syndrome differentiation, CVN = culprit-vessel number, DAS = degree of artery stenosis, and SED = syndrome-element differentiation.