Feasibility of an Audio Computer-Assisted Self-Interview method to self-assess sexual maturation.

Purpose: Sexual maturation assessment using physical examination may no longer be feasible in some large epidemiologic surveys, such as National Health and Nutrition Examination Survey, because of the sensitivity of the examination and privacy concerns. This study tested the feasibility of a new automated audio computer-assisted self-interview (ACASI) module for children and adolescents for self-assessment of sexual maturation.

Methods: A cross-sectional feasibility study was conducted at a large urban children/adolescent clinic in Washington D.

Total folate and folic acid intakes from foods and dietary supplements of US children aged 1-13 y.

Background: Total folate intake includes naturally occurring food folate and folic acid from fortified foods and dietary supplements. Recent reports have focused on total folate intakes of persons aged > or =14 y. Information on total folate intakes of young children, however, is limited.

Total folate and folic acid intake from foods and dietary supplements in the United States: 2003-2006.

Background: The term total folate intake is used to represent folate that occurs naturally in food as well as folic acid from fortified foods and dietary supplements. Folic acid has been referred to as a double-edged sword because of its beneficial role in the prevention of neural tube defects and yet possible deleterious effects on certain cancers and cognitive function. Previous monitoring efforts did not include folic acid from dietary supplements and are therefore not complete.

Anthropometric reference data for children and adults: United States, 1988-1994.

Objective: This report presents national anthropometric reference data for the U.S. population aged 3 months and older in 1988-1994.

Blood folate levels: the latest NHANES results.

Data from the National Health and Nutrition Examination Surveys. Very large increases in blood folate levels of the U.S.

Trends of elevated blood pressure among children and adolescents: data from the National Health and Nutrition Examination Survey1988-2006.

Background: Elevated blood pressure (EBP) in children and adolescents increases future risk of cardiovascular disease. Among children and adolescents, increased weight is associated with EBP.

Methods: National cross-sectional data for children and adolescents aged 8-17 years from the National Health and Nutrition Examination Surveys (NHANESs): 1988-1994, 1999-2002, and 2003-2006.

Anthropometric reference data for children and adults: United States, 2003–2006.

Objective-This report presents national anthropometric reference data for all ages of the U.S. population in 2003-2006, adding to results published previously from 1960-2002.

Leisure-time physical activity among US adults 60 or more years of age: results from NHANES 1999-2004.

Background: We examined leisure-time physical activity (LTPA) in US adults 60 or more years of age. After determining the prevalence of 3 levels of LTPA (no LTPA, <150 minutes LTPA/wk, and > or =150 minutes of LTPA/ wk), we examined the association of demographic variables and current health status with LTPA.

Methods: Self-reported LTPA was examined by gender, age, race/ethnicity, education, family poverty income ratio, marital status, and self-reported health.

Are demographic characteristics, health care access and utilization, and comorbid conditions associated with hypertension among US adults?

Background: Little is known about the factors associated with hypertension awareness, treatment, and control. We examined the association of demographic and socioeconomic characteristics, risk factors, health care access and utilization, and hypertension awareness, treatment, and control.

Methods: The National Health and Nutrition Examination Survey (NHANES) 1999-2004, a continuous, annual survey of the civilian non-institutionalized US population.

Obesity among adults in the United States--no statistically significant change since 2003-2004.

Over 34% of adults aged 20 years and older are obese, but there has been no significant change in the prevalence since 2003-2004. The increasing trend in obesity over the last 25 years is a result of a shift in the entire BMI distribution and an increase in the prevalence of those who are extremely obese. In addition, disparities continue to exist.

Relationship of polyunsaturated fatty acid intake to peripheral neuropathy among adults with diabetes in the National Health and Nutrition Examination Survey (NHANES) 1999 2004.

Objective: This study investigated the association between dietary intake of polyunsaturated fatty acids (PUFAs) and peripheral neuropathy in the U.S. population.

Nutrition assessment in the National Health And Nutrition Examination Survey 1999-2002.

The objective of this study is to describe the components of nutrition assessment in the National Health and Nutrition Examination Survey (NHANES) 1999-2002. The study design was a cross-sectional survey with a nationally representative sample of the US population. The survey participants were interviewed and completed a physical examination.

Has age at menarche changed? Results from the National Health and Nutrition Examination Survey (NHANES) 1999-2004.

Purpose: To examine self-reported age at menarche in U.S. adults and the associations between age at menarche and race/ethnicity.

Prevalence of overweight and obesity in the United States, 1999-2004.

Context: The prevalence of overweight in children and adolescents and obesity in adults in the United States has increased over several decades.

Objective: To provide current estimates of the prevalence and trends of overweight in children and adolescents and obesity in adults.

Design, Setting, And Participants: Analysis of height and weight measurements from 3958 children and adolescents aged 2 to 19 years and 4431 adults aged 20 years or older obtained in 2003-2004 as part of the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US population.

Health characteristics of U.S. adults by body mass index category: results from NHANES 1999-2002.

Objectives: We examined self-reported health characteristics, health care utilization, activity patterns, and demographic characteristics of U.S. adults 20 years and over by body mass index (BMI) category.

Anthropometric reference data for children and adults: U.S. population, 1999-2002.

This report presents national anthropometric reference data based on health examination survey results from the National Health and Nutrition Examination Survey (NHANES), 1999-2002, for all ages of the U.S. population.

Hair mercury levels in U.S. children and women of childbearing age: reference range data from NHANES 1999-2000.

Exposure to methyl mercury, a risk factor for neurodevelopmental toxicity, was assessed in U.S. children 1-5 years of age (n = 838) and women 16-49 years of age (n = 1,726) using hair mercury analysis during the 1999-2000 National Health and Nutrition Examination Survey (NHANES).