Another case–control study showed a trend of positive association between “hair” manganese level and ADHD without statistical significance. 20 Difference in study design (case–control vs cross-sectional), source of manganese level (ie, blood vs hair), and population (described in the “Discussion” section) may contribute to the heterogeneity of the study results.
← all excerpts
Association between peripheral manganese levels and attention-deficit/hyperactivity disorder: a preliminary meta-analysis.
1
—
—