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Pernicious anemia is the most common cause of clinically evident vitamin B 12 deficiency worldwide. [14] Pernicious anemia due to autoimmune problems occurs in about one per 1000 people in the US. Among those over the age of 60, about 2% have the condition. [8] It more commonly affects people of northern European descent. [2]
Pernicious anemia is the most common cause of vitamin B 12 deficiency anemia in adults, which results from malabsorption of vitamin B 12 due to a lack or loss of intrinsic factor. [2] [8] There are relatively few studies which have assessed the impact of haematological measures in response to B 12 supplementation.
Nutritional anemia can be caused by a lack of iron, protein, vitamin B12, and other vitamins and minerals that are needed for the formation of hemoglobin. However, Iron deficiency anemia is the most common nutritional disorder. [7] Signs of anemia include cyanosis, jaundice, and easy bruising. [7]
Anemia affects 27% of the world's population with iron-deficiency anemia accounting for more than 60% of it. [116] A moderate degree of iron-deficiency anemia affected approximately 610 million people worldwide or 8.8% of the population. [14] It is somewhat more common in females (9.9%) than males (7.8%). [14]
During the 1920s, George Whipple discovered that ingesting large amounts of raw liver seemed to most rapidly cure the anemia of blood loss in dogs, and hypothesized that eating liver might treat pernicious anemia. [145] Edwin Cohn prepared a liver extract that was 50 to 100 times more potent in treating pernicious anemia than the natural liver ...
The Latin American region has reduced underweight children prevalence by 3.8% every year between 1990 and 2004, with a current rate of 7% underweight. [2] They also have the lowest rate of child mortality in the developing world, with only 31 per 1000 deaths, and the highest iodine consumption. [ 2 ]
The U.S. population grew only 0.1% from the previous year before. [90] The United States' population has grown by less than one million people for the first time since 1937, with the lowest numeric growth since at least 1900, when the Census Bureau began yearly population estimates. [90]
America's Health Rankings started in 1990 and is the longest-running annual assessment of the nation's health on a state-by-state basis. It is founded on the World Health Organization holistic definition of health, which says health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.