Evidence-Based Complementary and Alternative Medicine

Review Article

Danshen Formulae for Cancer: A Systematic Review and Meta-Analysis of High-Quality Randomized Controlled Trials

Table 5

Risk of bias assessments for included studies.
Included studiesABCDEFGTotal
Chen 2012+?+++?+4
Gong 2018+?+++?+5
Guo 2017+??++++5
Lan 2003+-+-+?+4
Li 2017+--?+++4
Mok 2007+?+++++5
Shen 2017+?-?+?+4
Wang 2010+--?+++4
Wen 1996+??-+++4
Xu 2004+??++-+4
Yan 1995+-?++-+4
Zeng 2015+-??+++4
Zhang 2013+?-?+++4
A, random sequence generation (selection bias); B, allocation concealment (selection bias).
C, blinding of participants and personnel (performance bias); D, blinding of outcome assessment(detection bias).
E, incomplete outcome data (attrition bias); F, selective reporting (reporting bias); G, other bias. +, low risk of bias;–, high risk of bias; ?, unclear risk of bias.