Table A7.

First Stage Regression Estimations in the Add Health sample

Age	−0.012 (0.013)
Male Baby	−0.005 (0.042)
Married at Time of Birth	−0.119** (0.049)
Black	−0.233*** (0.046)
Hispanic	−0.238*** (0.048)
Family Income ($1000s)	0.002 (0.007)
Maternal Education	−0.017* (0.010)
No Health Insurance (wave 3)	0.097* (0.056)
Medicaid (wave 3)	0.078 (0.052)
Want Child	−0.016 (0.044)
A1A2 × MAOA4R1	−0.101** (0.048)
SL × DRD4R1	0.138* (0.070)
SL × MAOAR2	−0.150*** (0.053)
Constant	0.713** (0.280)

Heteroscedasticity-robust asymptotic standard errors are in parentheses.

^*p< 0.1,

^**p< 0.05,

^***p< 0.01