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WHO lists world’s top 10 killer diseases

Heart disease remains the leading cause of death at the global level in the last 20 years.

• December 10, 2020
WHO Director General Tedros Adhanom Ghebreyesus
WHO Director General, Tedros Adhanom Ghebreyesus

The World Health Organisation (WHO) says heart disease remains the number one killer while diabetes and dementia are among top 10 of Non-Communicable Diseases (NCDs) killing people globally.

The WHO, in its 2019 Global Health Estimates posted on its website, stated that NCDs made up seven of the world’s top 10 causes of death, a sharp increase from two decades ago.

According to the world body, heart disease remains the leading cause of death at the global level in the last 20 years, but it is now killing more people than ever before, representing 16 per cent of total deaths from all causes.

It noted that “the number of deaths from heart disease increased over fourfold, from two million since 2000, to nearly nine million in 2019.

“Alzheimer’s disease and other forms of dementia are now among the top 10 causes of death worldwide, and deaths from diabetes increased by 70 per cent globally between 2000 and 2019.’’

The UN health agency, therefore, emphasised the need for increased attention to preventing and treating cardiovascular diseases, cancer, diabetes and chronic respiratory diseases, as well as tackling injuries.

WHO Director-General, Tedros Ghebreyesus, said “these new estimates are another reminder that we need to rapidly step up prevention, diagnosis and treatment of non-communicable diseases.

“They highlight the urgency of drastically improving primary healthcare equitably and holistically.”

Mr. Ghebreyesus also underlined the importance of strong primary health care toward combating non-communicable diseases, as well as the coronavirus pandemic.

“People living with pre-existing health conditions such as heart disease, diabetes and respiratory conditions, are at higher risk of complications and death due to COVID-19,” he added.

The WHO Global Health Estimate covers the years 2000 to 2019, prior to the outbreak of the coronavirus pandemic. The next update to the estimates will include an assessment of the direct and indirect impact of the pandemic on mortality and morbidity.

The findings also pointed to global decline in deaths from communicable diseases, though they remain a major challenge in low- and middle-income countries as deaths from tuberculosis, for instance, reduced by about 30 per cent.

The estimates also found that life-spans increased over the years, with a global average of more than 73 years (in 2019) compared to nearly 67 (in 2000) but on average, only five of those additional years were lived in good health.

“Disability is on the rise,” WHO said, explaining that to a large extent, the diseases and health conditions causing the most deaths are also responsible for most number of healthy life-years lost.

“Injuries are another major cause of disability and death,” the UN agency added, noting that there had been a “significant rise” in road traffic injuries since 2000, with the African region worst affected.

Meanwhile, it stated that in the Americas, drug use emerged as a major factor in both disability and death.

“There was a nearly threefold increase in deaths from drug use disorders in the Americas between 2000 and 2019.

“The region is also the only one for which drug use disorder is a top 10 contributor to healthy life-years lost due to premature deaths and disability,’’ it noted. 


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