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  2. Personal income in the United States - Wikipedia

    en.wikipedia.org/wiki/Personal_income_in_the...

    Personal income is an individual's total earnings from wages, investment interest, and other sources. The Bureau of Labor Statistics reported a median weekly personal income of $1,139 for full-time workers in the United States in Q1 2024. [1] For the year 2022, the U.S. Census Bureau estimates that the median annual earnings for all workers ...

  3. Income inequality in the United States - Wikipedia

    en.wikipedia.org/wiki/Income_inequality_in_the...

    Income inequality has fluctuated considerably in the United States since measurements began around 1915, moving in an arc between peaks in the 1920s and 2000s, with a 30-year period of relatively lower inequality between 1950 and 1980. The U.S. has the highest level of income inequality among its (post-)industrialized peers. [1]

  4. Preston curve - Wikipedia

    en.wikipedia.org/wiki/Preston_curve

    Data points of income per head and life-expectancy of individual countries. The Preston curve is an empirical cross-sectional relationship between life expectancy and real per capita income. It is named after Samuel H. Preston who first described it in 1975. [1][2] Preston studied the relationship for the 1900s, 1930s and the 1960s and found it ...

  5. List of countries by total health expenditure per capita

    en.wikipedia.org/wiki/List_of_countries_by_total...

    US average of $10,447 in 2018. [ 3 ] This article includes 2 lists of countries of the world and their total expenditure on health per capita. Total expenditure includes both public and private expenditures. See also: Health spending as percent of gross domestic product (GDP) by country. The first table and bar chart lists member countries of ...

  6. Orthodontics - Wikipedia

    en.wikipedia.org/wiki/Orthodontics

    Orthodontics. Orthodontics[a][b] is a dentistry specialty that addresses the diagnosis, prevention, management, and correction of mal-positioned teeth and jaws, as well as misaligned bite patterns. [2] It may also address the modification of facial growth, known as dentofacial orthopedics. Abnormal alignment of the teeth and jaws is very common.

  7. Household income in the United States - Wikipedia

    en.wikipedia.org/wiki/Household_income_in_the...

    Median U.S. household income per County in 2021 Median U.S. household income through 2019 U.S. real median household income reached $63,688 in January 2019, an increase of $171 or 0.3% over one month over that of December 2018. This article is part of a series on Income in the United States of America Topics Household Personal Affluence Social class Income inequality gender pay gap racial pay ...

  8. Universal Numbering System - Wikipedia

    en.wikipedia.org/wiki/Universal_Numbering_System

    This is a dental practitioner view, so tooth number 1, the rear upper tooth on the patient's right, appears on the left of the chart. The Universal Numbering System, sometimes called the "American System", is a dental notation system commonly used in the United States. [1][2] Most of the rest of the world uses the FDI World Dental Federation ...

  9. Health care prices in the United States - Wikipedia

    en.wikipedia.org/wiki/Health_care_prices_in_the...

    According to the CDC, during 2015, health expenditures per-person were nearly $10,000 on average, with total expenditures of $3.2 trillion or 17.8% of GDP. [3] Proximate reasons for the differences with other countries include higher prices for the same services (i.e., a higher price per unit) and greater use of healthcare (i.e., more units ...