EA twins associated_with age at first sexual intercourse
Evidence from:
primary |
all sources
Evidence (1 sources)
Parental separation, parental alcoholism, and timing of first sexual intercourse.
(2015)
PMID:25907653
cited
EA twins older on average at first sex (M=17.43) than AA twins (M=16.85), p<0.0001.
confidence: 0.98