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Anthropometry is an effective and frequently performed child health and nutrition screening procedure. The value of physical growth data depends on their accuracy and reliability, how they are recorded and interpreted, and what follow-up efforts are made after identification of growth abnormality. The new National Center for Health Statistics percentiles(More)
for blood pressure and hypertension in the period from 1960 to 1980 are also presented. Under the Ieg]slation establishing the National Health Survey. !he Public Health Service is authorized to use. insofar as possible, the sert>ices or facilities of other Federal. State. or private agencies. In accordance with specifications established b), the National(More)
Because a definitive diagnosis of pulmonary hypertension requires cardiac catheterization, there have been no data on the prevalence of pulmonary hypertension in the general population. The diameter of the right descending pulmonary artery, as measured from chest roentgenograms, has been used by clinicians as a noninvasive indicator of pulmonary(More)
Most visualization tools fail to provide support for missing data. We identify sources of missing, and categorize data visualization techniques based on the impact missing data have on the display: region dependent, attribute dependent, and neighbor dependent. We then report on a user study with 30 participants that compared three design variants. A(More)
It has recently been reported that a low intake of calcium may be a risk factor for hypertension. In view of the contradictory results, even when the same survey data base has been used by different researchers, an in-depth analysis was undertaken of the data provided by the two cycles of the National Health and Nutrition Examination Survey (NHANES). Both(More)
This report presents the distribution of blood pressure levels of U.S. children aged 6-11 years by age, sex, and race. Data were obtained in Cycle II of the Health Examination Survey (HES), which is one of the major programs of the National Center for Health Statistics (NCHS) concerned with assessingthe health status of the U.S. population. The program(More)
Intensive efforts by practicing physicians and public health workers to identify and treat persons with hypertension have been underway for many years. In this report, changes in blood pressure levels in the United States are assessed based on nationally representative health (and nutrition) examination surveys conducted by the National Center for Health(More)