Table 1.

Quality appraisal of reviewed articles (N=25)

First author [Ref No.]	Year	Gough’s WOE (WOE a, WOE b, WOE c, WOE d)
Ko [35]	2020	H, H, H, H
Park [34]	2020	H, H, H, H
Kwon [29]	2019	H, H, H, H
Kwak [23]	2018	H, H, M, H
You [31]	2018	H, H, H, H
Hong [20]	2017	H, H, M, H
Kim [19]	2017	H, H, H, H
Woo [32]	2017	H, H, H, H
Park [41]	2017	H, H, H, H
Shon [39]	2016	H, H, M, H
Park [24]	2016	H, H, M, H
Hong [26]	2015	H, H, M, H
Bae [33]	2014	H, H, H, H
Choi [17]	2014	H, H, M, H
Park [30]	2014	H, H, M, H
Jennings [21]	2014	H, H, H, H
Kim [38]	2013	H, H, M, H
Kim [37]	2013	H, H, M, H
Han [36]	2012	H, H, M, H
Park [25]	2012	H, H, M, H
Hong [40]	2011	H, H, M, H
Kim [27]	2010	H, H, H, H
Kim [28]	2010	H, H, M, H
Kim [18]	2009	H, H, M, H
Kim [22]	2009	H, H, M, H

Ref No.: reference number; WOE: weight of evidence.

H: high; M: medium; WOE a: methodological trustworthiness; WOE b: methodological relevance; WOE c: topic relevance; WOE d: overall score.