Hypertension is defined here if the systolic or diastolic blood pressure is greater than or equal to 140/90 or if the participant is currently taking antihypertensive medications.

This variable is defined by the self-report of doctor's diagnosis of hypertension for those who were defined as having hypertension using the NHANES definition only.

This variable is defined for participants whose blood pressure are below the cutoff of 140/90 (both systolic and diastolic must be less than the cutoff values) for those who were defined as having hypertension using the NHANES definition only and also indicated whether or not they were receiving treatment for hypertension.

Hypertension is defined here using the following NHANES definition: if the systolic or diastolic blood pressure is greater than or equal to 140/90 or if the participant self-reported as currently taking antihypertensive medications.

This variable classifies participants into 4 categories based on hypertension and hypertensive.

This variable is defined by the participant's self-report awareness of hypertension and self-report use of antihypertensive medications for those who were defined as having hypertension using the NHANES definition only.