Preventable causes of death

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The World Health Organization has traditionally classified death according to the primary type of disease or injury. However, causes of death may also be classified in terms of preventable risk factors—such as smoking, unhealthy diet,sexual behavior,and reckless dirving—which contribute to a number of different diseases. Such risk factors are usually not recorded directly on death certificates.[1]


It is estimated that of the roughly 150,000 people who die each day across the globe, about two thirds—100,000 per day—die of age-related causes because they have aged.[2] In industrialized nations the proportion is much higher, reaching 90%.[2] Thus, albeit indirectly, biological aging (senescence) is by far the leading cause of death. Whether senescence as a biological process itself can be slowed down, halted, or even reversed is a subject of current scientific speculation and research.[3]

2001 figures

Leading causes of preventable death worldwide as of the year 2001, according to researchers working with the Disease Control Priorities Network (DCPN)[4] and the World Health Organization (WHO).[5] (The WHO's 2008 statistics show very similar trends.)

Cause Number of deaths resulting (millions per year)
Hypertension 7.8
Smoking tobacco 5.4
Malnutrition 3.8
Sexually transmitted diseases 3.0
Poor diet 2.8
Overweight and obesity 2.5
Physical inactivity 2.0
Alcohol 1.9
Indoor air pollution from solid fuels 1.8
Unsafe water and poor sanitation 1.6

In 2001, on average 29,000 children died of preventable causes each day (that is, about 20 deaths per minute). The authors provide the context:

United States

The three most common preventable causes of death in the population of the United States are smoking, high blood pressure, and being overweight.[6]

Accidental death

Annual number of deaths and causes

Cause Number Percent of total Notes
Preventable medical errors in hospitals 210,000 to 448,000 [9] 23.1% Estimates vary, significant numbers of preventable deaths also result from errors outside of hospitals.
Smoking tobacco 435,000 [7] 18.1%
Being overweight and obesity 111,909 [10] 4.6% There was considerable debate about the differences in the numbers of obesity-related diseases. The numbers reported in the referenced article have been found to be the most accurate.[11]
Alcohol 85,000 [7] 3.5%
Infectious diseases 75,000 [7] 3.1%
Toxic agents including toxins, particulates and radon 55,000 [7] 2.3%
Traffic collisions 43,000 [7] 1.8%
Preventable colorectal cancers 41,400 1.7% Colorectal cancer (bowel cancer, colon cancer) caused 51,783 deaths in the US in 2011.[12] About 80 percent[13] of colorectal cancers begin as benign growths, commonly called polyps, which can be easily detected and removed during a colonoscopy. Accordingly, the tabulated figure assumes that 80% of the fatal cancers could have been prevented.
Firearms deaths 31,940 [14] 1.3% Suicide: 19,766; homicide: 11,101; Accidents: 852; Unknown: 822
Sexually transmitted infections 20,000 [7] 0.8%
Drug abuse 17,000 [7] 0.7%

Among children worldwide

Various injuries are the leading cause of death in children 9–17 years of age. The top five worldwide unintentional injuries in children are as follows:[15]

Leading causes of death by injury among children worldwide.[15]
Cause Number of deaths resulting
Traffic collision

260,000 per year


175,000 per year


96,000 per year


47,000 per year


45,000 per year

See also


  1. "Preventable causes of death in North Carolina" (PDF). N C Med J. 63 (4): 196. 2002. PMID 12970957.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. 2.0 2.1 Aubrey D.N.J, de Grey (2007). "Life Span Extension Research and Public Debate: Societal Considerations" (PDF). Studies in Ethics, Law, and Technology. 1 (1, Article 5). doi:10.2202/1941-6008.1011. Retrieved August 7, 2011.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. "SENS Foundation".<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. "DCP3".<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  5. 5.0 5.1 Lopez AD, Mathers CD, Ezzati M, Jamison DT, Murray CJ (May 2006). "Global and regional burden of disease and risk factors, 2001: systematic analysis of population health data". Lancet. 367 (9524): 1747–57. doi:10.1016/S0140-6736(06)68770-9. PMID 16731270.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  6. 6.0 6.1 Harvard T.H. Chan School of Public Health (April 27, 2009). "Smoking, high blood pressure and being overweight top three preventable causes of death in the U.S." The President and Fellows of Harvard College. Retrieved 2015-05-15.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  7. 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Mokdad AH, Marks JS, Stroup DF, Gerberding JL (March 2004). "Actual causes of death in the United States, 2000" (PDF). JAMA. 291 (10): 1238–45. doi:10.1001/jama.291.10.1238. PMID 15010446.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. 8.0 8.1 National Vital Statistics Report, Vol. 50, No. 15, September 16, 2002 as compiled at [1]
  9. "A New, Evidence-based Estimate of Patient Harms Associated with Hospital Care". Journal of Patient Safety. Retrieved 2014-02-21.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  10. Flegal, K.M., B.I. Graubard, D.F. Williamson, and M.H. Gail. (2005). "Obesity". Journal of the American Medical Association. 293 (15): 1861–1867. doi:10.1001/jama.293.15.1861. PMID 15840860.CS1 maint: multiple names: authors list (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  11. "Controversies in Obesity Mortality: A Tale of Two Studies" (PDF). RTI International. Retrieved 2014-02-21.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  12. Centers for Disease Control and Prevention. "Colorectal Cancer Statistics". Retrieved January 12, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  13. Carol A. Burke; Laura K. Bianchi. "Colorectal Neoplasia". Cleveland Clinic. Retrieved January 12, 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  14. "Deaths: Preliminary Data for 2011" (PDF). CDC. Retrieved 2014-02-21.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  15. 15.0 15.1 "BBC NEWS | Special Reports | UN raises child accidents alarm". BBC News. December 10, 2008. Retrieved May 8, 2010.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>