What type of research uses NHANES?

The National Health and Nutrition Examination Survey (NHANES) is a program of studies designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews and physical examinations.

What survey is produced by NHANES?

The NHANES program includes a series of cross-sectional nationally representative health examination surveys. The health interview includes questions on demographic characteristics, health insurance status, health and diet behaviors, chronic and acute health conditions, mental health, and prescription medication use.

What does NHANES stand for?

National Health and Nutrition Examination Survey
The National Health and Nutrition Examination Survey (NHANES) is one of a series of health-related programs conducted by the Centers for Disease Control and Prevention’s (CDC) National Center for Health Statistics (NCHS).

What is the difference between NHANES I and NHANES II?

NHES I focused on selected chronic disease of adults aged 18-79. NHES II and NHES III focused on the growth and development of children. The NHES II sample included children aged 6-11, while NHES III focused on youths aged 12-17.

How many participants are in NHANES?

5,000 people
The first NHANES program began in 1960. Since 1999, the survey has examined about 5,000 people in 15 different counties across the country each year. Each participant makes an important contribution to the study, representing approximately 65,000 others in the country like them. Learn more about NHANES history.

How do I get NHANES data?

NHANES data files are available for download from the website as SAS transport files (. XPT). To use these files you need to create a directory to save them, download the data files and documentation, and then extract or import the datasets.

Is NHANES a cohort study?

The NHEFS cohort includes all persons 25-74 years of age who completed a medical examination at NHANES I in 1971-75 (n = 14,407). It is comprised of a series of follow-up studies, four of which have been conducted to date.

What data does NHANES collect?

Data are collected on indicators of the nutritional and health status of Americans through dietary intake data, biochemical tests, physical measurements, and clinical assessments for evidence of nutritional deficiencies.

Which statement about the National Health and Nutrition Examination Survey NHANES is correct?

Which statement about the National Health and Nutrition Examination Survey (NHANES) is correct? NHANES collects health and nutritional information on adults and children.

Is nhanes data public?

Whenever new data items are developed using physical samples from a NHANES survey such as stored sera, DNA, or imaging studies, these new data items are made publicly accessible under either public use, or RDC access, depending on the nature of the derived data item and disclosure risk.

How do I check my nhanes data?

You can view NHANES data with the SAS Universal Viewer – a free application downloadable from SAS Institute website. Currently, most NHANES data is available in the SAS transport format (. xpt), which can be used in several statistical software programs, including SUDAAN, STATA, SPSS, and R.

What is the NHANES survey?

Why does NHANES collect dietary data?

NHANES remains open and flexible to incorporate improvements while maintaining data quality and providing timely data to track the nation’s nutrition and health status. In summary, NHANES collects dietary data in the context of its broad, multipurpose goals; the strengths and limitations of these data are also discussed in this review.

What is the purpose of the NHANES III second exam sample?

The NHANES III Second Exam Sample was a sub-study of NHANES III, conducted for research purposes. These research files are intended to provide additional data for use with special statistical methods to improve estimates from the main survey data and for methodologic investigations.

What is nhnhanes?

NHANES has a long history, beginning in the early 1960s as the National Health Examination Survey that collected limited data on nutrition status.