Table 1.

Risk of Bias (ROB) Scores for Studies Identified: Randomized Trials of Chinese Herbal Medicine Combined With Fluorouracil-Based Chemotherapy, Compared With Chemotherapy Alone for Colon Cancer.^a

First Author (Year)	Random Sequence Generation	Allocation Concealment	Blinding of Participants and Personnel	Incomplete Outcomes Data	Selective Reporting	Other Bias	Total Score
Low ROB
Liu J (2005)70	0	0	2	0	0	0	2
Zeng JY (2010)72	0	0	2	0	0	2	4
Zhang Q (2010)71	0	0	2	0	0	0	2
Moderate ROB
Huang ZF (2005) 82	0	0	2	2	1	2	7
Wu GL (2010)80	2	2	2	0	0	0	6
High ROB
Chen J (2010)101	0	2	2	2	2	2	10
Chen L (2001)102	2	2	2	0	1	2	9
Chen XD (2005)103	1	1	2	1	1	2	8
Gao HD (2005)104	2	2	2	2	2	2	12
Hu AM (2006)78	2	2	2	1	1	2	10
Jia XQ (2000)105	2	2	2	2	2	2	12
Li YJ (1999)91	2	2	2	2	2	2	12
Liu H (2001)88	2	2	2	0	1	2	9
Liu J (2005)77	2	1	2	1	1	2	9
Liu JA (2000)106	2	2	2	0	1	2	9
Luo L (2006)107	2	2	2	1	1	2	10
Ma J (2005)93	2	2	2	1	1	2	10
Niu CF (2003)89	2	2	2	1	1	2	10
Pan MQ (2003)108	2	2	2	2	1	2	11
Shu JH (2011)81	2	1	2	0	1	2	8
Song CY (2012)109	2	2	2	2	2	2	12
Tan XY (2006)110	2	2	2	1	1	2	10
Wang HZ (2000)85	2	2	2	0	1	2	9
Wang WP (2003)111	2	2	2	2	2	2	12
Wu JY (2003)112	2	2	2	2	1	2	11
Xiao H (2011)79	2	2	2	1	1	2	10
Xiao ZQ (1998)113	2	2	2	2	1	2	11
Xu YQ (2006)62	2	2	2	2	2	2	12
Yang QR (2001)114	2	2	2	2	2	2	12
Yang X (2006)115	2	1	2	1	1	2	9
Yang ZY (2005)83	2	1	2	1	1	2	9
Yu GY (2005)116	2	2	2	2	1	2	11
Yu Y (2006)84	2	2	2	2	2	2	12
Zhang JW (2004)86	2	2	2	0	0	2	8
Zhao WS (2006)117	2	2	2	2	2	2	12
Zhu WR (2005)90	2	2	2	1	1	2	10

^a“Other bias” refers to bias due to problems not covered elsewhere in the Cochrane ROB tool.