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Article

Age at first sexual intercourse, genes, and social context: evidence from twins and the dopamine D4 receptor gene.

Demography - 1 Nov 2006

Guo Guang, Tong Yuying

Abstract excerpt

We carried out two distinct types of genetic analysis with data from the National Longitudinal Study of Adolescent Health. The first was a non-DNA twin analysis using monozygotic (identical) and same-sex dizygotic (fraternal) twins. The second analysis investigates the association between age at first sexual intercourse and the 48-bp repeat polymorphism in the dopamine receptor D4 gene (DRD4). The twin analysis...

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Identifiers

PMID: 17236545
DOI: 10.1353/dem.2006.0029

Genes

DRD4

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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