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Anaemia Afflicts Nearly 1 In 4 People Worldwide, But There Are Practical Strategies For Reducing It

People become anaemic when their blood lacks enough healthy red blood cells to carry oxygen throughout the body

Anaemia Afflicts Nearly 1 In 4 People Worldwide, But There Are Practical Strategies For Reducing It
Anaemia is diagnosed by a simple blood test and can be caused by a number of underlying conditions

Seattle: Anaemia is a major health problem, with nearly 2 billion people affected globally. It afflicts more people worldwide than low back pain or diabetes – or even anxiety and depression combined. Despite this, investments in reducing anaemia have failed to substantially reduce the massive burden of anaemia globally over the last few decades. People become anaemic when their blood lacks enough healthy red blood cells to carry oxygen throughout the body. This decreased oxygen delivery causes many of the most common symptoms of anaemia, including fatigue, shortness of breath, lightheadedness, difficulty concentrating and challenges with work and daily life tasks.

Also Read: Nearly 6 In 10 Female Teens Anaemic In India, Teenage Motherhood An Important Risk Factor: Study

In addition to its direct health effects, anaemia can inhibit brain development and fine motor skills in children and heighten the risk of stroke, cardiovascular disease, dementia and other chronic illnesses in older adults. Anaemia during pregnancy can lead to increased rates of anxiety and depression, early labour, postpartum hemorrhage, stillbirth and low birth weight. Infections for both mother and baby are also more likely when the mother is anemic.

We are global health researchers with expertise in epidemiological modeling of anaemia alongside other maternal, neonatal and nutritional disorders.

Our work is part of the Global Burden of Disease Study, a large research study comprehensively estimating health loss due to hundreds of diseases, injuries and risk factors around the globe. Through our analysis, we have produced annual estimates of anaemia prevalence by underlying cause for 204 countries and territories, by age and sex, from 1990 to the present. We have collected thousands of data points across hundreds of sources to produce the most comprehensive picture of anaemia burden.

Anaemia is a widespread problem. Anaemia is diagnosed by a simple blood test and can be caused by a number of underlying conditions.

Also Read: Women And Children Progressed Slower Than Adult Men: Lancet Study On Global Anaemia Burden

Decreases in healthy red blood cells can occur due to excessive loss of existing red blood cells, such as through bleeding or destruction by the body’s immune system. Anaemia can also occur due to decreased production of new red blood cells or changes in the normal structure or lifespan of red blood cells that make them less effective.

Globally, anaemia is the third-largest cause of disability: Our recent study found that nearly 1 in 4 people has anaemia. This burden is concentrated among children younger than 5 years and adolescent girls and women, one-third of whom are anemic. Anaemia rates are particularly high in sub-Saharan Africa and South Asia, where we estimated that 40% – or two out of every five people – have anaemia.

Reductions in anaemia rates have been slow and uneven, dropping from 28% to 24% globally from 1990 to 2021. Adult males have fared better, with young children and adolescent girls and women – who bear the highest burden of anaemia – showing the least progress. On the positive side, there has been a shift toward milder forms of anaemia, which result in much less disability compared to severe anaemia.

Reducing anaemia means tackling underlying causes Substantially reducing anaemia globally is complicated by its many underlying causes. Dietary iron deficiency is the most common cause across the globe. But other important drivers of anaemia include blood disorders such as sickle cell disease or thalassemias, infectious diseases like malaria and hookworm, gynecologic and obstetric conditions, inflammation and chronic diseases.

Also Read: Odisha Launches Anaemia Eradication Programme ‘AMLAN’

Anaemia in adolescent and adult women often occurs due to loss of blood from menstruation and increased needs for blood for the developing baby during pregnancy. Much of the anaemia burden in this group is likely related to lack of menstrual education, inadequate options for effectively managing menstrual problems in those who have them, and unmet needs for family planning services. These are also important drivers among transgender men and nonbinary people who menstruate.

Young children have increased requirements for iron as their bodies grow, and malnutrition is a common cause of anaemia in this group globally.

Iron supplementation has historically been the primary form of treatment and prevention of anaemia. This includes large-scale addition of iron to foods such as flour, rice or milk, as well as providing oral iron tablets and intravenous iron, depending on the context and severity.

Some research has suggested that less than half of people with anaemia will fully respond to supplemental iron if the underlying causes of iron deficiency remain untreated. For example, cells in our bodies sequester iron as part of the immune response to some infections. Supplementing with iron without treating the underlying infection will do little to solve the iron deficiency in the long run, and it may even be harmful.

Also Read: Opinion: Anaemia Is Not Just A Rural Phenomena, Its Prevalence In Urban Slums Needs Attention

Additional interventions include HIV treatment and prevention, with pre-exposure prophylaxis and anti-retroviral therapy. Preventing initial infection with HIV or suppressing the effects of the virus once infected will reduce the anaemia burden related to HIV/AIDS.

Other strategies include malaria control methods, such as insecticide-treated bed nets and vaccination, and monitoring and prevention of chronic illnesses such as chronic kidney disease and inflammatory conditions. In combination with a robust supplementation program, these interventions could meaningfully reduce the global burden of anaemia.

Anaemia makes it hard for nearly 2 billion people worldwide to learn in school, perform at work and take care of their families. We hope our findings will allow for more comprehensive intervention and treatment plans, especially for the most vulnerable – adolescent and adult women, children and the elderly.

Also Read: Campaign For Elimination Of Sickle Cell Anaemia Will Become Key Mission Of Amrit Kaal: Prime Minister Narendra Modi

(This story has not been edited by NDTV staff and is published from a syndicated feed.)

NDTV – Dettol have been working towards a clean and healthy India since 2014 via the Banega Swachh India initiative, which is helmed by Campaign Ambassador Amitabh Bachchan. The campaign aims to highlight the inter-dependency of humans and the environment, and of humans on one another with the focus on One Health, One Planet, One Future – Leaving No One Behind. It stresses on the need to take care of, and consider, everyone’s health in India – especially vulnerable communities – the LGBTQ populationindigenous people, India’s different tribes, ethnic and linguistic minorities, people with disabilities, migrants, geographically remote populations, gender and sexual minorities. In wake of the current COVID-19 pandemic, the need for WASH (WaterSanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign will continue to raise awareness on the same along with focussing on the importance of nutrition and healthcare for women and children, fight malnutrition, mental wellbeing, self care, science and health, adolescent health & gender awareness. Along with the health of people, the campaign has realised the need to also take care of the health of the eco-system. Our environment is fragile due to human activity, which is not only over-exploiting available resources, but also generating immense pollution as a result of using and extracting those resources. The imbalance has also led to immense biodiversity loss that has caused one of the biggest threats to human survival – climate change. It has now been described as a “code red for humanity.” The campaign will continue to cover issues like air pollutionwaste managementplastic banmanual scavenging and sanitation workers and menstrual hygiene. Banega Swasth India will also be taking forward the dream of Swasth Bharat, the campaign feels that only a Swachh or clean India where toilets are used and open defecation free (ODF)status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and the country can become a Swasth or healthy India.

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