. Author manuscript; available in PMC: 2014 Jan 1.

Published in final edited form as: Biodemography Soc Biol. 2013;59(1):4–36. doi: 10.1080/19485565.2013.774615

Table 4.

Effects of the Genetic Instrument in ADH1B on Several Maternal Alcohol Measures in ALSPAC

	Any alcohol Trimester 1	Any alcohol Trimester 2	Any alcohol Trimester 3
rs1229984	−.100^***	−0.072^***	−0.086^***
	(0.022)	(0.022)	(0.029)

F statistic	20.529	10.429	9.011
R²	0.002	0.001	0.002
N	6754	7340	4553

	Number of alcohol units, Trimester 1	Number of alcohol units, Trimester 2	Number of alcohol units, Trimester 3	Binge drinking, Trimester 2
rs1229984	−0.888^***	−0.610^***	−0.580^***	−0.129^***
	(0.120)	(0.132)	(0.191)	(0.034)

F statistic	55.242	21.379	9.193	14.355
R²	0.002	0.001	0.001	0.001
N	6754	7340	4553	7316

Notes: The Table reports the instrument effects (OLS regression coefficients and their standard errors in parentheses) on several alcohol consumption measures in the ALSPAC dataset.

p < 0.10,

^***

p < 0.01