Table 2. Extracted data according to each study design.
1,5) For review articles, AMSTAR [23] was used to assess the quality of studies.
2,5) For intervention studies, Jadad scale [20] was used to assess the quality of studies.
3,5) For cohort, nested case-control, and case-control studies, Newcastle-Ottawa [21] was used to assess the quality of studies.
4,5) For cross-sectional studies, STROBE [22] was used to assess the quality of studies.
Source: KNS, 2014 [27] .
