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  2. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    Hemoglobin in the blood carries oxygen from the respiratory organs (lungs or gills) to the other tissues of the body, where it releases the oxygen to enable aerobic respiration which powers an animal's metabolism. A healthy human has 12 to 20 grams of hemoglobin in every 100 mL of blood. Hemoglobin is a metalloprotein, a chromoprotein, and ...

  3. Mentzer index - Wikipedia

    en.wikipedia.org/wiki/Mentzer_index

    The Mentzer index, described in 1973 by William C. Mentzer, [1] is the MCV divided by the RBC count. It is said to be helpful in differentiating iron deficiency anemia from beta thalassemia trait.

  4. List of countries by median age - Wikipedia

    en.wikipedia.org/.../List_of_countries_by_median_age

    It is the only index associated with the age distribution of a population. [ 1 ] Currently, the median age ranges from a low of about 18 or less in most Least Developed countries to 40 or more in most European countries, Canada , Cuba , Hong Kong , Japan , South Korea , Taiwan , and Thailand .

  5. List of countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_life...

    These values are used to calculate the Human Development Index. UN: Estimate of life expectancy for various ages in 2023 ... 5.18: 2.97: 1.53 Russia: 73.15: 0.43 ...

  6. Demographics of the world - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_the_world

    65 years and over: 9.7% (male 337,244,947/female 415,884,753) (2021 est.) [7] Median Age – 31 years (male: 30.3 years, female: 31.8 years, 2021 est.) According to a report by the Global Social Change Research Project, worldwide, the percent of the population age 0–14 declined from 34% in 1950 to 27% in 2010. The elderly population (60 ...

  7. CHA2DS2–VASc score - Wikipedia

    en.wikipedia.org/wiki/CHA2DS2–VASc_score

    Thus, the CHA 2 DS 2-VASc score is a refinement of CHADS 2 [8] [10] score and extends the latter by including additional common stroke risk factors, that is, age 65–74, female gender and vascular disease. [11] In the CHA 2 DS 2-VASc score, 'age 75 and above' also has extra weight, with 2 points.

  8. Man - Wikipedia

    en.wikipedia.org/wiki/Man

    A man is an adult male human. [a] [2] [3] Before adulthood, a male human is referred to as a boy (a male child or adolescent). Like most other male mammals, a man's genome usually inherits an X chromosome from the mother and a Y chromosome from the father. Sex differentiation of the male fetus is governed by the SRY gene on the Y

  9. Upper gastrointestinal bleeding - Wikipedia

    en.wikipedia.org/wiki/Upper_gastrointestinal...

    The strongest predictors of an upper gastrointestinal bleed are black stool, age <50 years, and blood urea nitrogen/creatinine ratio 30 or more. [8] [9] The diagnosis of upper gastrointestinal bleeding is assumed when hematemesis (vomiting of blood) is observed. [citation needed]