nhanes: NHANES blood pressure data
In table.glue: Make and Apply Customized Rounding Specifications for Tables

nhanes

R Documentation

NHANES blood pressure data

Description

The US National Health and Nutrition Examination Survey (NHANES) was designed to assess the health and nutritional status of the non-institutionalized US population and was conducted by the National Center for Health Statistics of the Centers for Disease Control and Prevention (1). Since 1999-2000, NHANES has been conducted in two-year cycles using a multistage probability sampling design to select participants. Each cycle is independent with different participants recruited.

Usage

nhanes

Format

A data frame with columns:

exam: NHANES exam: 2013-2014, 2015-2016, or 2017-2018
seqn: survey participant identifier
psu: primary sampling unit
strata: survey strata
wts_mec_2yr: 2 year mobile examination weights
exam_status: exam status. Participants either completed both the NHANES interview and exam or just the interview.
age: participant's age, in years
sex: participant's sex
race_ethnicity: participant's race and ethnicity
education: participant's education
pregnant: pregancy status
bp_sys_mmhg: participant's systolic blood pressure, mm Hg
bp_dia_mmhg: participant's diastolic blood pressure, mm Hg
n_msr_sbp: the number of valid systolic blood pressure readings
n_msr_dbp: the number of valid diastolic blood pressure readings
bp_high_aware: was participant ever told they had high blood pressure by a medical professional?
meds_bp: is participant currently using medication to lower their blood pressure?

Note

Blood pressure measurements

The same protocol was followed to measure systolic and diastolic blood pressure (SBP and DBP) in each NHANES cycle. After survey participants had rested 5 minutes, their BP was measured by a trained physician using a mercury sphygmomanometer and an appropriately sized cuff. Three BP measurements were obtained at 30 second intervals.