Heritability of cannabis initiation in Dutch adult twins

J.M. Vink; L.M.C. Wolters; M.C. Neale; D.I. Boomsma

doi:10.1016/j.addbeh.2009.09.015

Heritability of cannabis initiation in Dutch adult twins

J.M. Vink, L.M.C. Wolters, M.C. Neale, D.I. Boomsma

Biological Psychology

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Previous studies exploring the heritability of cannabis initiation have been carried out in the United States, Australia and United Kingdom. In the present study we assess cannabis initiation in The Netherlands, where the use of cannabis in small amounts is permitted. The sample included 3115 twins with a mean age of 27.4 years (SD 4.7) who are registered with the Netherlands Twin Register (NTR). Individual differences in cannabis initiation showed moderate genetic influences (44%). The remaining variance was explained by environmental influences shared by twins (31%) and by unique environmental factors (24%). Compared to studies from other countries, these results suggest that the relative importance of genetic and environmental factors is not different in a country with a more liberal cannabis policy. © 2009 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	172-174
Journal	Addictive Behaviors
Volume	35
Issue number	2
DOIs	https://doi.org/10.1016/j.addbeh.2009.09.015
Publication status	Published - 2010

Cohort Studies

Netherlands Twin Register (NTR)

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10.1016/j.addbeh.2009.09.015

http://www.tweelingenregister.org/nederlands/verslaggeving/NTR-publicaties_2010/Vink_AB_2010.pdf

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title = "Heritability of cannabis initiation in Dutch adult twins",

abstract = "Previous studies exploring the heritability of cannabis initiation have been carried out in the United States, Australia and United Kingdom. In the present study we assess cannabis initiation in The Netherlands, where the use of cannabis in small amounts is permitted. The sample included 3115 twins with a mean age of 27.4 years (SD 4.7) who are registered with the Netherlands Twin Register (NTR). Individual differences in cannabis initiation showed moderate genetic influences (44%). The remaining variance was explained by environmental influences shared by twins (31%) and by unique environmental factors (24%). Compared to studies from other countries, these results suggest that the relative importance of genetic and environmental factors is not different in a country with a more liberal cannabis policy. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.",

author = "J.M. Vink and L.M.C. Wolters and M.C. Neale and D.I. Boomsma",

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AU - Vink, J.M.

AU - Wolters, L.M.C.

AU - Neale, M.C.

AU - Boomsma, D.I.

PY - 2010

Y1 - 2010

N2 - Previous studies exploring the heritability of cannabis initiation have been carried out in the United States, Australia and United Kingdom. In the present study we assess cannabis initiation in The Netherlands, where the use of cannabis in small amounts is permitted. The sample included 3115 twins with a mean age of 27.4 years (SD 4.7) who are registered with the Netherlands Twin Register (NTR). Individual differences in cannabis initiation showed moderate genetic influences (44%). The remaining variance was explained by environmental influences shared by twins (31%) and by unique environmental factors (24%). Compared to studies from other countries, these results suggest that the relative importance of genetic and environmental factors is not different in a country with a more liberal cannabis policy. © 2009 Elsevier Ltd. All rights reserved.

AB - Previous studies exploring the heritability of cannabis initiation have been carried out in the United States, Australia and United Kingdom. In the present study we assess cannabis initiation in The Netherlands, where the use of cannabis in small amounts is permitted. The sample included 3115 twins with a mean age of 27.4 years (SD 4.7) who are registered with the Netherlands Twin Register (NTR). Individual differences in cannabis initiation showed moderate genetic influences (44%). The remaining variance was explained by environmental influences shared by twins (31%) and by unique environmental factors (24%). Compared to studies from other countries, these results suggest that the relative importance of genetic and environmental factors is not different in a country with a more liberal cannabis policy. © 2009 Elsevier Ltd. All rights reserved.

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DO - 10.1016/j.addbeh.2009.09.015

M3 - Article

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VL - 35

SP - 172

EP - 174

JO - Addictive Behaviors

JF - Addictive Behaviors

IS - 2

ER -

Heritability of cannabis initiation in Dutch adult twins

Abstract

Cohort Studies

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