For estimates by age and race and Hispanic origin, use of the following age categories is recommended for reducing the variability in the sample weights and therefore reducing the variance of the estimates: 5 years and under, 6-11 years, 12-19 years, 20-39 years, 40-59 years, 60 years and over.Īdjustment for nonresponse to the interview or exam The NHANES sample weights can be quite variable due to the oversampling of subgroups. In general a sample person is assigned a weight that is equivalent to the reciprocal of his/her probability of selection. civilian non-institutionalized population available from the Census Bureau.
It is a measure of the number of people in the population represented by that sample person. A sample weight is assigned to each sample person. civilian noninstitutionalized resident population. When a sample is weighted in NHANES it is representative of the U.S. Weights are created in NHANES to account for the complex survey design (including oversampling), survey non-response, and post-stratification adjustment to match total population counts from the Census Bureau.
#Reason 6 tutorial plus
Questionnaires, Datasets, and Related Documentation plus icon.
2010 NHANES Stakeholders Consortium Presentations.
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