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. Author manuscript; available in PMC: 2020 Mar 11.
Published in final edited form as: Int J Obes (Lond). 2018 Oct 22;43(1):33–42. doi: 10.1038/s41366-018-0236-5

Table 3.

Parameter Estimates (95% Confidence Intervals) for the Additive Genetic and Non-Shared Environmental Contributions to ADHD symptoms and BMI during adolescence, young adulthood, and adulthood by Zygosity.

Zygosity ADHD Symptoms Adolescent BMI Young Adult BMI Adult BMI
Males
a2 0.40 (0.27 – 0.52) 0.85 (0.79 – 0.89) 0.82 (0.76 – 0.87) 0.76 (0.67 – 0.82)
e2 0.60 (0.48 – 0.73) 0.15 (0.11 – 0.21) 0.18 (0.13 – 0.24) 0.24 (0.18 – 0.33)
Females
a2 0.21 (0.08 – 0.36) 0.75 (0.68 – 0.80) 0.78 (0.72 – 0.83) 0.89 (0.84 – 0.91)
e2 0.79 (0.64 – 0.92) 0.25 (0.20 – 0.32) 0.22 (0.17 – 0.29) 0.11 (0.09 – 0.16)

Note: a2, total additive genetic influence; e2, total non-shared environmental influence.