Reporting quality and risk of bias of Cochrane individual participant data meta-analyses: A cross-sectional study.

Objectives: This study aimed to assess the reporting quality and risk of bias of Cochrane individual participant data meta-analyses (IPD-MAs).

Methods: We searched the Cochrane Library and identified the Cochrane IPD-MAs. We used the Preferred Reporting Items for Systematic Review and Meta-Analyses of individual participant data (PRISMA-IPD) assessed the reporting quality of included Cochrane IPD- MAs, and the Risk Of Bias In Systematic reviews (ROBIS) tool was used to assess the risk of bias.

How about the quality and recommendation on prevention, diagnosis, and treatment of HIV/AIDS guidelines developed by WHO: A protocol for systematic review.

Background: Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) has become a pandemic that has infected millions of people around the world and brings a tremendous economic burden. There are numerous guidelines for prevention, diagnosis, and treatment of HIV/AIDS published in recent years, but the quality of these guidelines is still unknown. Therefore, we conducted this study to evaluate the quality of prevention, diagnosis, and treatment of HIV/AIDS published by World Health Organization (WHO) as well as perform a comparison of recommendations between those guidelines.

Prognosis of COVID-19 in patients with breast cancer: A protocol for systematic review and meta-analysis.

Background: Coronavirus disease 2019 (COVID-19) has become a pandemic in the world and posed a great threat to people's health. Several meta-analyses have indicated that many comorbidities were associated with increased risk of COVID-19 severity or mortality. The original report also showed that the mortality rate of COVID-19 in breast cancer patients is more dependent on comorbidities than previous radiation therapy or current anti-cancer therapy.

Exercise or sport activities for patients with cancer: A protocol for overview of systematic reviews and meta-analyses.

Objective: We plan to review all published systematic reviews (SRs) and meta-analyses (MAs) of exercise or sport activities for patients with cancer. The aim of this study is to combine and reanalyze related data and to provide more comprehensive and higher-level evidence.

Methods: We plan to search four English databases and four Chinese databases from inception to June 2019.