David J. Landry

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CONTEXT Women's behavior during pregnancy, which can affect the health of their infant, may be influenced by their attitude toward the pregnancy. METHODS Multivariate analyses of data from the 1988 National Maternal and Infant Health Survey and the 1988 National Survey of Family Growth were conducted to investigate whether women with unplanned births(More)
CONTEXT The planning status of a pregnancy may affect a woman's prenatal behaviors and the health of her newborn. However, whether this effect is independent or is attributable to socioeconomic and demographic factors has not been explored using nationally representative data. METHODS Data were obtained on 9,122 births reported in the 1988 National(More)
CONTEXT Researchers have examined the age of partners of young women at first intercourse and of young women who have given birth, but little is known about the age of partners of young women in current sexual relationships or young women who have had an abortion. METHODS Data from the 1995 National Survey of Family Growth (NSFG) were used to examine age(More)
BACKGROUND This study measured differences in the provision of care between public and private providers of contraceptive services, what problems using contraception these providers perceived their patients to have and providers' views on how to improve their patients' method use. STUDY DESIGN A nationally representative mixed-mode survey (mail, Internet(More)
One in every six U.S. birth certificates have no information on the age of the baby's father; for more than four in 10 babies born to adolescent women, no data are available on the father's age. Information from mothers aged 15-49 who had babies in 1988 and were surveyed in the National Maternal and Infant Health Survey indicates that fathers for whom age(More)
CONTEXT Since the late 1980s, both the political context surrounding sexuality education and actual teaching approaches have changed considerably. However, little current national information has been available on the content of sexuality education to allow in-depth understanding of the breadth of these changes and their impact on current teaching. (More)
CONTEXT While policymakers, educators and parents recognize the need for family life and sexuality education during children's formative years and before adolescence, there is little nationally representative information on the timing and content of such instruction in elementary schools. METHODS In 1999, data were gathered from 1, 789 fifth- and(More)
CONTEXT For more than two decades, abstinence from sexual intercourse has been promoted by some advocates as the central, if not sole, component of public school sexuality education policies in the United States. Little is known, however, about the extent to which policies actually focus on abstinence and about the relationship, at the local district level,(More)
CONTEXT While sex education is almost universal in U.S. schools, its content varies considerably. Topics such as abstinence, and basic information on HIV and other sexually transmitted diseases (STDs), are commonly taught; birth control and how to access STD and contraceptive services are taught less often. Factors potentially associated with these(More)
PURPOSE To evaluate the prevalence, clinical significance, interobserver agreement, and follow-up of extracardiac findings on coronary computed tomographic angiography (CTA). METHODS A prospectively recruited cohort of 80 patients at low to intermediate risk of having coronary artery disease underwent CTA with field of view imaging from lung apices to(More)