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Biomedical subjects

J F Kantner

Publications and source records attributed to J F Kantner.

At least 19 recordsLinked to original sources
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Probabilities of intercourse and conception among U.S. teenage women, 1971 and 1976.

One in five U.S. females have had intercourse by age 16, and two-thirds, by age 19. Almost all the experience is premarital. One in 10 U.S. women get pregnant before age 17; one-quarter before they are 19, and eight in 10 of these pregnancies are premarital. More than one-third of those who are sexually active premaritally have a premarital pregnancy before they turn 19, one-quarter by the time they are 17.

Actuarial Analysis↗
PubMedDate not supplied

The risk of adolescent pregnancy in the first months of intercourse.

Because of early age at initiation of intercourse and associated nonuse of contraception, half of first premarital pregnancies to teens occur in the first six months after they begin coitus; one-fifth occur in the first month. Programs to prevent adolescent pregnancy will not succeed unless they reach young people before they begin sexual activity.

Actuarial Analysis↗