Data sources and Search strategy
This systematic review and meta-analysis was conducted in accordance
with the Meta-analysis Of Observational Studies in Epidemiology (MOOSE)
guidelines6. The review protocol is registered with
PROSPERO (CRD42019138399). We searched the electronic databases,
MEDLINE, EMBASE, CINHAL, and Web of Science with an end of search date
of May 6, 2019. Subsequently, we updated the literature search to
include all relevant articles published until May 31, 2020. The search
was conducted by ZL. The search strategy is detailed in the
supplementary file. Bibliographies of previously conducted systematic
reviews and meta-analyses on closely related topics, and eligible
studies were checked for additional studies. Two reviewers independently
screened the titles and abstracts of studies (PA, MP, AA, ZL). Data
extraction was also conducted by two reviewers independently (PA, ZL).
Disagreements were resolved by discussion within the team.