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. Author manuscript; available in PMC: 2024 Jun 12.
Published in final edited form as: Prev Sci. 2022 Mar 18;25(Suppl 2):203–224. doi: 10.1007/s11121-022-01359-3

Fig-1.

Fig-1

Flowchart of triage process for articles identified for meta-analyses of prenatal, birth, and postnatal risk factors associated with attention-deficit/hyperactivity disorder

Note: Articles overlap across categories and therefore the n representing the sum of the individual risk factors is greater than the overall n for each box. Articles were identified through a comprehensive search of PubMed, Web of Science, and EMBASE and iterative reference mining in 2014, and an updated search of PubMed, Web of Science, and EMBASE in January 2021.