Table 9. Primary review findings on cognitive function.

Study	Outcome	Treatment status	Comparator	Effect estimates (95% CI)
Feller et al. (2018) [17]	Cognitive function	Treated	Untreated	Difference 1.01 (95% CI −0.56 to 2.46)
Reyes Domingo et al. (2019) [38]	Cognitive function	Treated	Untreated	Multiple (no difference)
Villar et al. (2007) [40]	Cognitive function	Treated	Untreated	MD 2.4 (0.3–4.5)
Rugge et al. (2015) [39]	Cognitive function	Treated	Untreated	Multiple (no difference)

MD–Mean Difference.