...I applied Cochrane Review Manager (RevMan, version 5.4) 2 with the random effect model to recalculate the 95%CI and p-value. According to Cochrane Handbook for Systematic Reviews of Interventions ...4, it is appropriate to use the mean difference (MD), not the standardized mean difference (SMD), as summary statistics for continuous data with the same scale. ...SMD is unitless, solely showing the difference in a relatively measurement scale, not a real difference in variability 4. ...the authors did not show theses plots in the main text or supplemental figures as well. ...to display the assessment of publication bias, funnel plots might better be added or mentioned.
Author Affiliation: (1) Department of Anesthesiology, Zhongshan Hospital of Traditional Chinese Medicine, Affiliated to Guangzhou University of Chinese Medicine, 3 Kangxin Road, 528400, Zhongshan, ...Guangdong, China (a) mengsiluo1992@outlook.com Article History: Registration Date: 11/26/2020 Received Date: 11/22/2020 Accepted Date: 11/26/2020 Online Date: 01/09/2021 Byline:
