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This report describes the methods used to create NHANES 2011-2014 sample weights and variance units for the public-use data files, including sample weights for selected subsamples, such as the fasting subsample. The impacts of sample design changes on estimation for NHANES 2011-2014 and the addition of the NHANES National Youth Fitness Survey (NNYFS) 2012 are described. Approaches that data users can employ to modify sample weights when combining survey cycles or when combining subsamples are also included.
This article was published in the following journal.
Name: Vital and health statistics. Series 2, Data evaluation and methods research
Socioeconomic status (SES) is associated with systemic disease and influences oral and general health. Several studies have found inequalities associated with oral health and SES. We examined the rela...
This study aimed to investigate the relationship between rheumatoid arthritis and periodontal disease using data from the Sixth Korea National Health and Nutrition Examination Survey (KNHANES, 2013-20...
Tin is a naturally occurring heavy metal that occurs in the environment in both inorganic and organic forms. Human exposure to tin is almost ubiquitous; however, surprisingly little is known about fac...
Smoking rate based on self-reporting questionnaire might be underestimated. Cotinine is the principal metabolite of nicotine and is considered an accurate biomarker of exposure to cigarette smoke.
The purpose of this study was to investigate the relationships among working hours, near work time, and perceived stress. In total, data of 3,776 workers from the Korea National Health and Nutrition E...
To supplement the fourth National Health and Nutrition Examination Survey protocol to include data on the common heart, vascular, lung, and blood diseases.
This study is a secondary analysis of the dietary, phenotypic and demographic data collected within the National Adult Nutrition Survey (NANS), Ireland, to determine meal patterns using a ...
The China Health and Nutrition Survey (CHNS), an ongoing open cohort, international collaborative project between the Carolina Population Center at the University of North Carolina at Chap...
Overall study design is to review National Health and Nutrition Examination Survey (NHANES) data 1999-2008 for nutrition risk according to kidney function. Substudies will be performed to ...
Background: Autoimmune hypothyroidism has been regarded as the most common cause of primary hypothyroidism in iodine sufficient area and has relationship with excess iodine induced hypothy...
A unit of the National Institutes of Health that seeks to catalyze the generation of innovative methods and technologies that will enhance the development, testing, and implementation of diagnostics and therapeutics across a wide range of human diseases and conditions. The Center was established in 2011.
Components of a national health care system which administer specific services, e.g., national health insurance.
Component of the NATIONAL INSTITUTES OF HEALTH. It conducts and supports basic and applied research for a national program in diabetes, endocrinology, and metabolic diseases; digestive diseases and nutrition; and kidney, urologic, and hematologic diseases. It was established in 1948.
Voluntary organizations which support educational programs and research in psychiatry with the objective of the promotion of mental health. An early association in the United States was founded as the National Committee for Mental Hygiene in 1909, became the Mental Health Association in 1976 and later the National Mental Health Association in 1980. State and local mental health associations in this country are chartered by the national organization and affiliated with it.
Component of the NATIONAL INSTITUTES OF HEALTH. It conducts research focused on improving the treatment and prevention of alcoholism and alcohol-related problems to reduce the health, social, and economic consequences of this disease. NIAAA, NIMH, and NIDA were created as coequal institutes within the Alcohol, Drug Abuse and Mental Health Administration in 1974. It was established within the NATIONAL INSTITUTES OF HEALTH in 1992.
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