Higher rates of autism and attention deficit/hyperactivity disorder in American children: Are food quality issues impacting epigenetic inheritance?

Table 1 Rate of change in Center for Disease Control prevalence estimates among 8-year-old children between 2000-2018

Year	Autism prevalence estimate among 8-year-old children (CDC)	Rate of change
2000	6.7/1000
2002	6.6/1000
2004	8/1000
2006	9/1000
2008	11.3/1000
2010	14.7/1000	1.6/1000 (from 2000-2010)
2012	14.5/1000
2014	16.8/1000
2016	18.5/1000
2018	23/1000	2.7/1000 (from 2012-2018)

CDC: Center for Disease Control.

Table 2 Number of United States students ages 6-21 served under Individuals with Disabilities Education Act by disability category & year

Year	Autism	OHI (including ADHD)	Speech/language	Developmental delay (3-9 yr only)	All disabilities
2006	224594	599494	1160904	89931	6081890
2011	407214	734348	1071555	115642	5789884
2021	768179	1097251	1183310	255787	6712010
% Change (2006-2021)	+242.0%	+83.0%	+1.9%	+184.4%	+10.4%

OHI: Other health impaired; ADHD: Attention deficit hyperactivity disorder.