Context: While differences in levels of contraceptive use across socioeconomic subgroups of
women have narrowed greatly over time, large disparities remain in rates of unintended …

Context: Unintended pregnancy remains a major public health concern in the United States.
Information on pregnancy rates among contraceptive users is needed to guide medical …

Analysis of data from the 1988 National Survey of Family Growth--corrected for the
underreporting of abortion--reveals that contraceptive failure during the first year of use …

Context: Half of all pregnancies in the United States are unintended. Of these, half occur to
women who were practicing contraception in the month they conceived, and others occur …

A multivariate life-table analysis of national survey data from 1982 indicates that among
currently married women, the pill and IUD have the lowest use-failure rates. During the first …

CONTEXT: Each year, nearly one in four US women at risk of unintended pregnancy
experience one or more months of contraceptive nonuse. Understanding what factors are …

BACKGROUND: In 2001, the US government's “Healthy People 2010” initiative set a goal of
reducing contraceptive failure during the first year of use from 13% in 1995 to 7% by 2010 …

ContextUnintended pregnancy remains a major public health concern in the United States.
Information on pregnancy rates among contraceptive users is needed to guide medical …

CONTEXT Contraceptive failure rates measure a woman's probability of becoming pregnant
while using a contraceptive. Information about these rates enables couples to make …

It is estimated that only about half of all abortions occurring during the period covered by the
1982 National Survey of Family Growth were actually reported in the survey; thus …