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. Author manuscript; available in PMC: 2019 Sep 9.
Published in final edited form as: Am J Med Genet B Neuropsychiatr Genet. 2016 Sep 13;171(8):1112–1115. doi: 10.1002/ajmg.b.32492

Fig. 1. Genotype frequency distribution by IQ levels. Frequency of each genotype based on IQ level. The y-axis in the figure is the percentage of individuals in a given IQ class by genotype. Average intelligence is defined as an IQ IQ ≥ 80, borderline intelligence as IQ = 70–79, and intellectually impaired as IQ < 70.

Fig. 1