Evidence-Based Complementary and Alternative Medicine

Review Article

Efficacy and Safety of Fuzi Formulae on the Treatment of Heart Failure as Complementary Therapy: A Systematic Review and Meta-Analysis of High-Quality Randomized Controlled Trials

Table 4

Risk of bias summary and scores of included studies.
StudiesABCDEFGScores
Huo et al. [19]+++?+++6
Zou [18]+??-+++4
Liu et al. [20]+?+++?+4
Wang [21]+?-?+++4
Cao et al. [22]+?+?+++6
Zou et al. [23]+++++++6
Li et al. [24]+++?+++6
Dong [25]+?-?+++4
Li et al. [26]+?+?+++4
Wei [27]+?-?+++4
Zhu [28]+?-?+++4
Wang et al. [29]+++?+++5
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.