2.7. Quality assessment

Two reviewers (Zunming Zhou and Peiwen Chen) used Cochrane Collaboration risk of bias^[27] and Jadad score^[28] independently to manage methodological quality evaluation. We judged whether all the included literature had bias from selection, performance, detection, attrition, reporting, other bias from randomization, double-blinding, and dropout. If the Jadad scores were ≥3, the article was considered as a high-quality one; otherwise, it was considered as a low-quality article.