Adjuvant Treatment of Crohn’s Disease with Traditional Chinese Medicine: A Meta-Analysis

Table 2

Quality assessment of included randomized controlled trials.

Study ID	Assessment of methodological quality of the studies
	1	2	3	4	5	6	Grade of risk bias
Zhang 2018	U	U	N	Y	Y	U	B
Wang 2018	U	U	N	Y	Y	U	B
Cui 2017	U	U	N	Y	Y	U	B
Li 2017	U	U	N	Y	Y	U	B
Deng 2016	U	U	N	Y	Y	U	B
Zhen 2015	U	U	N	Y	Y	U	A
Wang 2014	Y	U	N	Y	Y	U	B
Fan 2014	U	U	N	Y	Y	U	B
Li 2013	U	U	N	Y	Y	U	B
Xun 2012	U	U	N	Y	Y	U	B
Ma 2012	U	U	N	Y	Y	U	B
Zou 2012	U	U	N	Y	Y	U	A

Notes: 1: randomization; 2: allocation concealment; 3: blinding; 4: complete outcome data; 5: selective reporting of outcomes; 6: other bias; Y: yes; N: no; U: unclear.