Table 2.

GRADE criteria for risk of bias evaluation. Green: No Risk of Bias; Yellow: Maybe Risk of Bias.

Reference	Methodological Quality	Directness of Evidence	Heterogeneity	Precision of Effect Estimates	Publication Bias	Level of Evidence	Recommendation for Use
Chen et al. (2016) [21]						Moderate	High
Scher et al. 2013 [59]						Moderate	High
Pianta et al. (2018) [60]						Moderate	Low+
Yu et al. (2021) [61]						Moderate	High
Kishikawa et al. (2020) [62]						Moderate	High
Alpizar-Rodriguez et al. (2019) [63]						Moderate	Low+
Chen et al. (2021) [64]						Moderate	High
Diamanti et al. (2020) [65]						Moderate	High
Sun et al. (2022) [66]						Moderate	Low+
Kitamura et al. (2022) [37]						Moderate	Low+