"7", "77", "777", "7777", or "77777", see "don't know" response
"9", "99", "999", "9999", or "99999", see "refused" response

A
add observations, see append data
add variables, see merge data
append data, Append & Merge Datasets, How to Append NHANES Data
ATLEV1 option, Variance Estimation, How to Perform Statistical Tests and Calculate Confidence Limits with Degrees of Freedom
ATLEV2 option, Variance Estimation, How to Perform Statistical Tests and Calculate Confidence Limits with Degrees of Freedom
Audio Computer-Assisted Self Interview (Audio-CASI), Survey Overview, Survey Methodology
 

B
balanced repeated replication, Variance Estimation, Key Concepts about Variance Estimation Methods in NHANES
beta coefficients, Logistic Regression, Key Concepts about Logistic Regression

C
categorical variable, Clean & Recode Data, How to Create Derived Variables from NHANES Data
check contents, Append & Merge Datasets, How to Append NHANES Data
check distribution, Clean & Recode, How to Identify Outliers and Evaluate Their Impact
Computer-Assisted Personal Interview, Survey Overview, Survey Methodology
Computer-Assisted Telephone Interview (CATI), Survey Overview, Survey Methodology
confidence intervals
   alternate methods for calculating, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   calculate with Clopper-Pearson method, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   calculate with Wald method, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
confidence limit, see confidence intervals
continuous variable
     creating categorical variable from a, Clean & Recode Data, How to Recode Variables Based on Alternate Definitions
combine data, see append data
cross tabulations, Clean & Recode Data, How to Identify and Recode Skip Patterns

D
data structure, Data Structure & Contents
degrees of freedom
   calculate, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   equation, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   SAS Survey Procedures macros, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   standard error, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
   subgroups, Variance Estimation, Key Concepts about Degrees of Freedom for Performing Statistical Tests and Calculating Confidence Limits
DEFF, see design effect
DEFT2 option, Variance Estimation, How to Perform Statistical Tests and Calculate Confidence Limits with Degrees of Freedom
delete 1 jackknife method, Variance Estimation, Key Concepts about Variance Estimation Methods in NHANES
demographics documentation files, Locate Variables, How to Consult the Documentation
derived variable, Clean & Recode Data, How to Create Derived Variables from NHANES Data
design effect, Variance Estimation, Key Concepts about Variance Estimation Within NHANES
dietary questionnaire, Survey Overview, Survey Methodology
"don't know" response, Clean & Recode Data, Key Concepts About Missing Data in NHANES
download
     data files, Download Data Files, How to Download Data Files and Documentation
     documentation, Download Data Files, How to Download Data Files and Documentation

E
examination data files, Download Data Files, How to Download Data Files and Documentation
examination documentation files, Download Data Files, How to Download Data Files and Documentation
extract data, Download Data Files, How to Extract and Copy NHANES Data Files as Permanent Libraries

F
format
   define custom, Format & Label variables, How to Format and Label NHANES Variables
   variables, Format & Label variables, How to Format and Label NHANES Variables
find variables, see locate variables
food frequency questionnaire, Survey Overview, Survey Methodology
frequency tables, Locate Variables, How to Consult the Documentation

G

H
Hispanic Health and Nutrition Examination Survey (HHANES), Survey Overview, Survey History

I
In-home Interview, see Computer-Assisted Personal Interview
In-person Interview, see Computer-Assisted Personal Interview
intra-class correlation, Variance Estimation, Key Concepts about Variance Estimation Within NHANES

J

K
keep statement, Append & Merge Datasets, How to Append NHANES Data

L
label variables, Format & Label variables, How to Format and Label NHANES Variables
laboratory data file
laboratory documentation files, Locate Variables, Key Concepts About Deciding Which NHANES Variables to Include
libname, Download Data Files, How to Extract and Copy NHANES Data Files to Permanent Libraries
library (SAS), Download Data Files, How to Extract and Copy NHANES Data Files to Permanent Libraries
locate variables, Locate Variables
logistic regression
   Logistic Regression
   differences in output, Logistic Regression, Key Concepts About Differences Between SUDAAN and SAS Survey Procedures Logistic Regression Output
   multivariate, Logistic Regression, Key Concepts about Setting Up a Logistic Regression in NHANES
   univariate, Logistic Regression, Key Concepts about Setting Up a Logistic Regression in NHANES
logit function, Logistic Regression, Key Concepts about Logistic Regression
logit model, Logistic Regression, Key Concepts about Logistic Regression

N
National Center for Health Statistics (NCHS), Survey Overview, Survey History

National Health and Nutrition Examination Survey (NHANES)
     I, Survey Overview, Survey History
     II, Survey Overview, Survey History
     III, Survey Overview, Survey History