According to the WHO, which of the following disease causes most deaths worldwide?

Tripura CHO - 2021

Community Health Nursing

Easy

Appeared in: Tripura CHO - 2021

Explanation

Cardiovascular diseases (CVDs), primarily ischemic heart disease and stroke, are the number one cause of death globally, as consistently reported by the World Health Organization (WHO) and the Global Burden of Disease (GBD) study.
According to GBD 2019 data, ischemic heart disease and stroke were the top two causes of death, accounting for a combined total of over 15 million deaths worldwide.
Non-communicable diseases (NCDs), with CVDs being the most prominent, now account for approximately two-thirds of all deaths globally, surpassing communicable diseases.
The rise in CVD mortality is linked to global risk factors such as high blood pressure, smoking, and high fasting plasma glucose.

Option B: While Malaria is a major public health problem and a significant cause of death, its impact is concentrated in specific regions, particularly Sub-Saharan Africa. Globally, it does not rank among the top causes of death.
Option C: Due to the widespread success and availability of antiretroviral therapy (ART), deaths from HIV/AIDS have fallen dramatically. It has moved from being the 7th leading cause of death in 2000 to outside the top 20 in recent years.
Option D: Tuberculosis is a leading cause of death from a single infectious agent, but its total global mortality is significantly lower than that of cardiovascular diseases. Its ranking has also fallen from 7th place in 2000 to 13th in 2019.

Clinical Relevance

Nursing practice connection: Knowing Leading causes of global mortality according to WHO helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses play a vital role in primary prevention of CVDs by educating patients on lifestyle modifications, including diet, exercise, and smoking cessation.
In clinical settings, nurses are responsible for secondary prevention through regular screening of blood pressure, cholesterol, and glucose levels, and ensuring patient adherence to prescribed medications.
The global shift from communicable to non-communicable diseases as the leading cause of death requires a corresponding shift in nursing education and public health priorities towards chronic disease management.

How to Approach the Question

Identify the keywords in the question: 'most deaths' and 'worldwide'. This indicates the need for knowledge of global mortality statistics.
Recognize that the question asks for the leading cause on a global scale, not within a specific region or demographic.
Differentiate between the impact of non-communicable diseases (like heart disease) and communicable/infectious diseases (like Malaria, HIV, TB).
Recall or deduce that with increasing life expectancy and lifestyle changes, chronic non-communicable diseases have become the dominant cause of death globally.
Among the options, cardiovascular disease is the leading non-communicable disease, making it the most likely correct answer.

Concept Tested & Keywords

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