Table 3.

Quality rating of included studies using AHRQ

Study	Item
	1	2	3	4	5	6	7	8	9	10	11	Total score
Gaskins et al.32 2012	√	√	√		√	√		√		√		7
Cutillas-Tolín et al.17 2015	√	√	√		√	√		√	√	√		8
Karayiannis et al.33 2017	√	√	√		√	√	√	√		√		8
Salas-Huetos et al.35 2019	√	√	√		√	√		√		√		7
Ricci et al.34 2019	√	√	√		√	√	√	√		√		8
Danielewicz et al.31 2019	√	√	√		√	√	√	√	√	√		9

AHRQ: Agency for Health Care Research and Quality