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Drug overdose deaths include all manners and intents, including unintentional, suicide, homicide, and undetermined intent. See Sources and Definitions, Cause of death; International Classification of Diseases (ICD).

Due to the coronavirus disease 2019 (COVID-19) pandemic, 2019 data from some jurisdictions may be incomplete. See Sources and Definitions, National Notifiable Diseases Surveillance System (NNDSS); Sexually Transmitted Disease (STD) Surveillance.

In 2019, the National Health Interview Survey (NHIS) questionnaire was redesigned, and other changes were made to weighting and design methodology. Data for 2019 have not been fully evaluated for comparability with earlier years; therefore, trends through 2019 are not shown. For more information on the 2019 NHIS redesign and evaluation of the redesign on selected indicators, see: https://www​.cdc.gov/nchs​/nhis/2019_quest_redesign.htm.

Excludes squamous cell and basal cell carcinomas. See Sources and Definitions, Cancer.

Defined by the reported level of difficulty in six domains of functioning: seeing, hearing, mobility, communication, cognition, and self-care. Adults reporting a lot of difficulty or cannot do at all to at least one functioning domain are considered to have a disability. See Sources and Definitions, Functional limitation.

Defined as ever smoking 100 cigarettes in their lifetime and smoking now every day or some days. See Sources and Definitions, Tobacco use.

Includes marijuana, cocaine (including crack), heroin, hallucinogens (including LSD, PCP, peyote, mescaline, psilocybin mushrooms, Ecstasy [MDMA or Molly], ketamine, DMT/AMT/Foxy, and Salvia divinorum), and prescription psychotherapeutic drugs (including pain relievers, tranquilizers, stimulants, and sedatives). See Sources and Definitions, Illicit drug use.

Within the past 12 months.

Data are for birth year and are based on the 3 subsequent survey years. For example, 2010 birth year data are based on 2011, 2012, and 2013 survey data. See Sources and Definitions, Vaccination.

Includes those who are fully vaccinated against HPV (also called up-to-date). Fully vaccinated against HPV is defined as three doses or more, or two doses when the first HPV vaccine dose was initiated before age 15 years and with at least 5 months minus 4 days between the first and second dose. See Sources and Definitions, Vaccination.

To account for inflation to compare expenditures over time, nominal (or current) dollar values are adjusted to constant (or real) dollars, using the chain-weighted personal healthcare deflator. See Sources and Definitions, Inflation-adjusted expenditures.

Includes people who had any of the following at the time of interview: Medicaid, state-sponsored health plan, or Children’s Health Insurance Program. It also includes those who had another type of coverage in addition to one of these. See Sources and Definitions, Health insurance coverage; Medicaid.

People with only Indian Health Service coverage are considered to have no health insurance coverage. See Sources and Definitions, Health insurance coverage; Uninsured.

NOTES: CDC is the Centers for Disease Control and Prevention. NCHS is the National Center for Health Statistics.