Inclusion Criteria: All non-pregnant survey participants ages 18+ years with non-zero blood pressure measurements.
Exclusion Criteria: Pregnant women.
Blood pressure measurements were not obtained in survey participants less than age 8 years and use of anti-hypertensive medication questionnaire not asked of survey participants less than age 16 years. Insufficient sample size of controlled blood pressure for ages 16-17 years, therefore this age range not included. Two years of data were pooled to create the estimates by population characteristics because of sample size limitations.
Due to small sample sizes for NHANES data, 95% confidence intervals are provided, which are important for interpreting the variability around the prevalence point estimates.
For insurance estimates, the following definitions are used: Private insurance excludes plans that pay for only one type of service, such as dental or vision care. Persons covered by both Medicare and Medigap plans are classified as having public coverage. Public coverage includes Medicaid, Children’s Health Insurance Program (CHIP), state-sponsored or other government-sponsored health plan, Medicare (disability), Indian Health Service or military health care (TRICARE, VA, or CHAMP-VA).
This measure is calculated by the Centers for Disease Control and Prevention, National Center for Health Statistics from the National Health and Nutrition Examination Survey.