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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: J Health Econ. 2015 Feb 21;41:107–116. doi: 10.1016/j.jhealeco.2015.01.005

Table A8.

Summary Statistics: Siblings with Discordant Gene-Environment Interaction

Siblings Pair Sample:
Base (1) Concordant (2) Discordant (3)
IQ 104.19 (14.82) 110.08 (14.48) 104.04 (14.81)
Birth Weight (in grams) 3367.55
631.85		 3385.40 (570.98) 3367.08 (633.65)
Neuroplasticity Genes (Count) 4.35 (1.06) 4.71 (0.81) 4.34 (1.06)
N 938 24 914

Notes: This table separates the base sibling sample by differences in the interaction between our neuroplasticity score and birth weight. Column (1) gives our base sample; column (2) considers only siblings that have an identical interaction; and column (3) gives sample statistics for siblings who differ.