statistic data assignment

PubHlth 223

NHANES Data Dictionary

Background: The National Health and Nutrition Examination Survey (NHANES) is a survey research program conducted by the National Center for Health Statistics (NCHS) to assess the health and nutritional status of adults and children in the United States and to track changes over time. The survey combines interviews and physical examinations. The NHANES interview includes demographic, socioeconomic, dietary, and health-related questions. The examination component consists of medical, dental, and physiological measurements, as well as laboratory tests administered by medical personnel.

Findings from the survey are used to determine the prevalence of major diseases and risk factors for diseases. Information is used to assess nutritional status and its association with health promotion and disease prevention. NHANES findings are also the basis for national standards for such measurements as height, weight, and blood pressure. Data from this survey are used in epidemiological studies and health sciences research which help develop health policy, direct and design health programs and services, and expand health knowledge.

(Reference: Ozonoff, David (2014). "Biomonitoring". In Rogers, Kara. Encyclopedia Britannica Online. Encyclopedia Britannica, Inc.)

Dataset Name: PH223coredata.CSV

Variable

Descriptions

ID

5 digit identification number of participant

Age

Age at the time of data collection (ages should be 17 and older)

Smoker

Current smoking status

1 is yes

2 is no

Bmi

Body Mass Index

Hospitalized

Number of hospital stays in last 12 months

Race

1 is Non Hispanic Caucasian American

2 is Non Hispanic African American

3 is Hispanic American

4 is other

Weight_lbs

Weight (pounds)

Asthma

1 is yes

2 is no

Systolicbp

Systolic Blood Pressure (mmHg)