Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Risk of bias quality assessment of included randomised controlled trials
| Author, year | Random sequence generation method | Allocation concealment | Blinding of outcome assessment | Selective outcome reporting | Withdraw/dropout |
|---|---|---|---|---|---|
| Lam 2012 [25] | Y | NI | Y | N | Y |
| Okuyan 2020 [26] | Y | NI | Y | N | Y |
| Sungkarat 2017 [27] | Y | Y | Y | N | Y |
| Sungkarat (2018) [28] | Y | Y | Y | N | Y |
| Tsai 2013 [29] | Y | Y | Y | N | Y |
| Tsai 2015 [30] | Y | Y | PY | N | NI |
Abbreviations: Y yes, PY partial yes, N no, NI no information
