This article needs to be updated.(September 2017) |
The following is a list of the causes of human deaths worldwide for different years arranged by their associated mortality rates. In 2002, there were about 57 million deaths. In 2005, according to the World Health Organization (WHO) using the International Classification of Diseases (ICD), about 58 million people died. [1] In 2010, according to the Institute for Health Metrics and Evaluation, 52.8 million people died. [2] In 2016, the WHO recorded 56.7 million deaths [3] with the leading cause of death as cardiovascular disease causing more than 17 million deaths (about 31% of the total) as shown in the chart to the side. In 2021, there were approx. 68 million deaths worldwide, as per WHO report. [4]
Some causes listed include deaths also included in more specific subordinate causes, and some causes are omitted, so the percentages may only sum approximately to 100%. The causes listed are relatively immediate medical causes, but the ultimate cause of death might be described differently. For example, tobacco smoking often causes lung disease or cancer, and alcohol use disorder can cause liver failure or a motor vehicle accident. For statistics on preventable ultimate causes, see preventable causes of death.
Besides frequency, other measures to compare, consider, and monitor trends of causes of deaths include disability-adjusted life year (DALY) and years of potential life lost (YPLL).
Age standardized death rate, per 100,000, by cause, in 2017, and percentage change 2007–2017. [5]
This first table gives a convenient overview of the general categories and broad causes. The leading cause is cardiovascular disease at 31.59% of all deaths.
Category | Cause | Percent | Percent |
---|---|---|---|
I. Communicable, maternal, neonatal, and nutritional disorders | Respiratory infections and tuberculosis | 6.85 | 19.49% |
Enteric infections | 3.31 | ||
Sexually transmitted infections | 1.88 | ||
Tropical diseases and malaria | 1.37 | ||
Other infectious diseases | 1.57 | ||
Maternal and neonatal disorders | 4.00 | ||
Nutritional deficiencies | 0.52 | ||
II. Non-communicable diseases | Cardiovascular diseases | 31.59 | 72.67% |
Neoplasms | 16.43 | ||
Chronic respiratory diseases | 6.97 | ||
Digestive diseases | 4.11 | ||
Neurological disorders | 5.84 | ||
Substance abuse | 0.58 | ||
Diabetes and kidney diseases | 4.55 | ||
Skin diseases | 0.18 | ||
Musculoskeletal disorders | 0.22 | ||
Other non-communicable | 2.22 | ||
III. Injuries | Transport injuries | 2.30 | 7.85% |
Unintentional injuries | 3.23 | ||
Self harm and violence | 2.32 | ||
Total | 100% | 100% | |
Top causes of death, according to the World Health Organization report for the calendar year 2001: [7]
Causes of death in developing countries | Number of deaths | Causes of death in developed countries | Number of deaths |
---|---|---|---|
HIV-AIDS | 2,678,000 | Ischaemic heart disease | 3,512,000 |
Lower respiratory infections | 2,643,000 | Cerebrovascular disease | 3,346,000 |
Ischaemic heart disease | 2,484,000 | Chronic obstructive pulmonary disease | 1,829,000 |
Diarrhea | 1,793,000 | Lower respiratory infections | 1,180,000 |
Cerebrovascular disease | 1,381,000 | Lung cancer | 938,000 |
Childhood diseases | 1,217,000 | Car crash | 669,000 |
Malaria | 1,103,000 | Stomach cancer | 657,000 |
Tuberculosis | 1,021,000 | Hypertensive heart disease | 635,000 |
Chronic obstructive pulmonary disease | 748,000 | Tuberculosis | 571,000 |
Measles | 674,000 | Suicide | 499,000 |
This table gives a more detailed and specific breakdown of the causes for the year 2017. Figures have a margin of error of about 5% on average.
Cause | Rate | % total | % change 2007–2017 |
---|---|---|---|
All causes | 737.7 | 100% | −14.2 |
I. Communicable, maternal, neonatal and nutritional disorders | 143.8 | 19.49% | −31.8 |
Respiratory infections and tuberculosis | 50.5 | 6.85% | −24.5 |
Tuberculosis | 14.9 | 2.02% | −31.4 |
Drug-susceptible tuberculosis | 13.2 | 1.79% | −31.9 |
Multidrug-resistant tuberculosis without extensive drug resistance | 1.6 | 0.22% | −28.6 |
Extensively drug-resistant tuberculosis | 0.2 | 0.03% | −7.7 |
Lower respiratory infections | 35.4 | 4.80% | −21.1 |
Upper respiratory infections | 0.1 | 0.01% | −42.1 |
Otitis media | 0.0 | 0.00% | −50.4 |
Enteric infections | 24.4 | 3.31% | −29.9 |
Diarrhoeal diseases | 21.6 | 2.93% | −30.2 |
Typhoid and paratyphoid | 1.9 | 0.26% | −27.8 |
(Typhoid fever) | 1.6 | 0.22% | −29.1 |
(Paratyphoid fever) | 0.3 | 0.04% | −18.9 |
iNTS | 0.8 | 0.11% | −24.8 |
Other intestinal infectious diseases | 0.0 | 0.00% | −44.7 |
Sexually transmitted infections | 13.9 | 1.88% | −53.6 |
HIV/AIDS | 12.1 | 1.64% | −56.5 |
HIV/AIDS – Drug-susceptible Tuberculosis | 2.5 | 0.34% | −61.1 |
HIV/AIDS – Multidrug-resistant Tuberculosis without extensive drug resistance | 0.3 | 0.04% | −58.1 |
HIV/AIDS – Extensively drug-resistant tuberculosis | 0.0 | 0.00% | −20.3 |
HIV/AIDS resulting in other diseases | 9.3 | 1.26% | −55.1 |
Sexually transmitted infections excluding HIV | 1.8 | 0.24% | −14.4 |
Syphilis | 1.7 | 0.23% | −14.3 |
Chlamydial infection | 0.0 | 0.00% | −15.2 |
Gonococcal infection | 0.0 | 0.00% | −14.9 |
Other sexually transmitted infections | 0.0 | 0.00% | −15.9 |
Neglected tropical diseases and malaria | 10.1 | 1.37% | −36.1 |
Malaria | 8.7 | 1.18% | −37.3 |
Chagas disease | 0.1 | 0.01% | −21.1 |
Leishmaniasis | 0.1 | 0.01% | −67.8 |
(Visceral leishmaniasis) | 0.1 | 0.01% | −67.8 |
African trypanosomiasis (sleeping sickness) | 0.0 | 0.00% | −82.8 |
Schistosomiasis | 0.1 | 0.01% | −28.5 |
Cysticercosis | 0.0 | 0.00% | −27.3 |
Cystic echinococcosis | 0.0 | 0.00% | −41.9 |
Dengue | 0.5 | 0.07% | 40.7 |
Yellow fever | 0.1 | 0.01% | −23.3 |
Rabies | 0.2 | 0.03% | −54.8 |
Intestinal nematode infections | 0.0 | 0.00% | −47.2 |
(Ascariasis) | 0.0 | 0.00% | −47.2 |
Ebola virus disease | 0.0 | 0.00% | −98.4 |
Zika virus disease | 0.0 | 0.00% | – |
Other neglected tropical diseases | 0.2 | 0.03% | −3.7 |
Other infectious diseases | 11.6 | 1.57% | −33.8 |
Meningitis | 4.0 | 0.54% | −27.8 |
Pneumococcal meningitis | 0.6 | 0.08% | −22.4 |
H influenzae type B meningitis | 1.1 | 0.15% | −40.6 |
Meningococcal infection | 0.4 | 0.05% | −37.1 |
Other meningitis | 2.0 | 0.27% | −17.3 |
Encephalitis | 1.2 | 0.16% | −14.3 |
Diphtheria | 0.1 | 0.01% | −28.6 |
Whooping cough (pertussis) | 1.4 | 0.19% | −27.1 |
Tetanus | 0.5 | 0.07% | −59.6 |
Measles | 1.4 | 0.19% | −59.3 |
Varicella (chickenpox) and herpes zoster (shingles) | 0.2 | 0.03% | −29.2 |
Acute hepatitis | 1.6 | 0.22% | −24.5 |
Acute hepatitis A | 0.3 | 0.04% | −38.7 |
Acute hepatitis B | 1.1 | 0.15% | −19.6 |
Acute hepatitis C | 0.0 | 0.00% | −32.1 |
Acute hepatitis E | 0.2 | 0.03% | −25.8 |
Other unspecified infectious diseases | 1.1 | 0.15% | −13.4 |
Maternal and neonatal disorders | 29.5 | 4.00% | −26.6 |
Maternal disorders | 2.5 | 0.34% | −30.7 |
Maternal haemorrhage | 0.5 | 0.07% | −56.4 |
Maternal sepsis and other pregnancy related infections | 0.3 | 0.04% | −33.5 |
Maternal hypertensive disorders | 0.4 | 0.05% | −13.0 |
Maternal obstructed labour and uterine rupture | 0.2 | 0.03% | −25.2 |
Maternal abortive outcome | 0.2 | 0.03% | −15.7 |
Ectopic pregnancy | 0.1 | 0.01% | −19.2 |
Indirect maternal deaths | 0.4 | 0.05% | −12.5 |
Late maternal deaths | 0.0 | 0.00% | −9.5 |
Maternal deaths aggravated by HIV/AIDS | 0.0 | 0.00% | −32.1 |
Other maternal disorders | 0.3 | 0.04% | −16.5 |
Neonatal disorders | 27.1 | 3.67% | −26.2 |
Neonatal preterm birth | 9.9 | 1.34% | −28.1 |
Neonatal encephalopathy due to birth asphyxia and trauma | 8.1 | 1.10% | −26.5 |
Neonatal sepsis and other neonatal infections | 3.1 | 0.42% | −14.4 |
Hemolytic disease and other neonatal jaundice | 0.7 | 0.09% | −39.3 |
Other neonatal disorders | 5.3 | 0.72% | −25.7 |
Nutritional deficiencies | 3.8 | 0.52% | −33.6 |
Protein-energy malnutrition | 3.3 | 0.45% | −34.6 |
Other nutritional deficiencies | 0.5 | 0.07% | −25.8 |
II. Non-communicable diseases | 536.1 | 72.67% | −7.9 |
Cardiovascular diseases | 233.1 | 31.60% | −10.3 |
Rheumatic heart disease | 3.7 | 0.50% | −21.3 |
Ischaemic heart disease | 116.9 | 15.85% | −9.7 |
Stroke | 80.5 | 10.91% | −13.6 |
Ischaemic stroke | 36.6 | 4.96% | −11.8 |
Intracerebral hemorrhage | 38.2 | 5.18% | −15.7 |
Subarachnoid hemorrhage | 5.7 | 0.77% | −9.4 |
Hypertensive heart disease | 12.3 | 1.67% | 7.5 |
Non-rheumatic valvular heart disease | 2.0 | 0.27% | −5.3 |
Non-rheumatic calcific aortic valve disease | 1.4 | 0.19% | −1.0 |
Non-rheumatic degenerative mitral valve disease | 0.5 | 0.07% | −14.0 |
Other non-rheumatic valve diseases | 0.1 | 0.01% | −17.8 |
Cardiomyopathy and myocarditis | 4.8 | 0.65% | −16.6 |
Myocarditis | 0.6 | 0.08% | −13.3 |
Alcoholic cardiomyopathy | 1.1 | 0.15% | −40.5 |
Other cardiomyopathy | 3.1 | 0.42% | −3.6 |
Atrial fibrillation and flutter | 4.0 | 0.54% | 2.6 |
Aortic aneurysm | 2.2 | 0.30% | −8.5 |
Peripheral vascular disease | 1.0 | 0.14% | 10.5 |
Endocarditis | 1.1 | 0.15% | 1.0 |
Other cardiovascular and circulatory diseases | 4.7 | 0.64% | −7.9 |
Neoplasms | 121.2 | 16.43% | −4.4 |
Lip and oral cavity cancer | 2.4 | 0.33% | 4.0 |
Nasopharynx cancer | 0.9 | 0.12% | −3.0 |
Other pharynx cancer | 1.4 | 0.19% | 7.9 |
Oesophageal cancer | 5.5 | 0.75% | −14.5 |
Stomach cancer | 11.0 | 1.49% | −17.1 |
Colon and rectum cancer | 11.5 | 1.56% | −4.3 |
Liver cancer | 10.2 | 1.38% | −2.5 |
(Liver cancer due to hepatitis B) | 4.0 | 0.54% | −6.2 |
(Liver cancer due to hepatitis C) | 3.0 | 0.41% | −2.1 |
(Liver cancer due to alcohol use) | 1.6 | 0.22% | 0.6 |
(Liver cancer due to NASH) | 0.8 | 0.11% | 7.6 |
(Liver cancer due to other causes) | 0.8 | 0.11% | −0.9 |
Gallbladder and biliary tract cancer | 2.2 | 0.30% | −6.7 |
Pancreatic cancer | 5.6 | 0.76% | 4.8 |
Larynx cancer | 1.6 | 0.22% | −7.7 |
Tracheal, bronchus, and lung cancer | 23.7 | 3.21% | −2.0 |
Malignant skin melanoma | 0.8 | 0.11% | −5.1 |
Non-melanoma skin cancer | 0.8 | 0.11% | 2.7 |
(Non-melanoma skin cancer (squamous-cell carcinoma)) | 0.8 | 0.11% | 2.7 |
Breast cancer | 7.6 | 1.03% | −2.6 |
Cervical cancer | 3.2 | 0.43% | −7.2 |
Uterine cancer | 1.1 | 0.15% | −10.4 |
Ovarian cancer | 2.2 | 0.30% | −1.0 |
Prostate cancer | 5.5 | 0.75% | −2.5 |
Testicular cancer | 0.1 | 0.01% | −9.4 |
Kidney cancer | 1.8 | 0.24% | −1.3 |
Bladder cancer | 2.6 | 0.35% | −5.4 |
Brain and nervous system cancer | 3.1 | 0.42% | 3.8 |
Thyroid cancer | 0.5 | 0.07% | −1.2 |
Mesothelioma | 0.4 | 0.05% | −3.4 |
Hodgkin lymphoma | 0.4 | 0.05% | −16.8 |
Non-Hodgkin's lymphoma | 3.2 | 0.43% | 0.1 |
Multiple myeloma | 1.4 | 0.19% | −0.4 |
Leukaemia | 4.5 | 0.61% | −9.6 |
Acute lymphoid leukaemia | 0.7 | 0.09% | −1.5 |
Chronic lymphoid leukaemia | 0.5 | 0.07% | −10.3 |
Acute myeloid leukaemia | 1.3 | 0.18% | −1.0 |
Chronic myeloid leukaemia | 0.3 | 0.04% | −19.9 |
Other leukaemia | 1.8 | 0.24% | −15.6 |
Other malignant cancers | 4.6 | 0.62% | 0.1 |
Other neoplasms | 1.3 | 0.18% | 7.4 |
Myelodysplastic, myeloproliferative and other hematopoietic neoplasms | 1.3 | 0.18% | 7.1 |
Other benign and in situ neoplasms | 0.1 | 0.01% | 15.5 |
Chronic respiratory diseases | 51.4 | 6.97% | −14.2 |
Chronic obstructive pulmonary disease | 42.2 | 5.72% | −13.6 |
Pneumoconiosis | 0.3 | 0.04% | −16.7 |
(Silicosis) | 0.1 | 0.01% | −15.5 |
(Asbestosis) | 0.0 | 0.00% | −8.3 |
(Coal workers pneumoconiosis) | 0.0 | 0.00% | −26.6 |
(Other pneumoconiosis) | 0.0 | 0.00% | −17.5 |
Asthma | 6.3 | 0.85% | −23.9 |
Interstitial lung disease and pulmonary sarcoidosis | 1.9 | 0.26% | 11.4 |
Other chronic respiratory diseases | 0.7 | 0.09% | −3.2 |
Digestive diseases | 30.3 | 4.11% | −10.7 |
Cirrhosis and other chronic liver diseases | 16.5 | 2.24% | −9.7 |
Cirrhosis and other chronic liver diseases due to hepatitis B | 4.8 | 0.65% | −14.3 |
Cirrhosis and other chronic liver diseases due to hepatitis C | 4.2 | 0.57% | −8.4 |
Cirrhosis and other chronic liver diseases due to alcohol use | 4.1 | 0.56% | −8.8 |
Cirrhosis due to NASH | 1.5 | 0.20% | −1.4 |
Cirrhosis and other chronic liver diseases due to other causes | 1.9 | 0.26% | −8.6 |
Upper digestive system diseases | 3.8 | 0.52% | −21.6 |
Peptic ulcer disease | 3.1 | 0.42% | −23.5 |
Gastritis and duodenitis | 0.7 | 0.09% | −11.7 |
Appendicitis | 0.6 | 0.08% | −17.0 |
Paralytic ileus and intestinal obstruction | 3.2 | 0.43% | −5.8 |
Inguinal, femoral, and abdominal hernia | 0.6 | 0.08% | −8.9 |
Inflammatory bowel disease | 0.5 | 0.07% | −10.5 |
Vascular intestinal disorders | 1.3 | 0.18% | −10.2 |
Gallbladder and biliary diseases | 1.5 | 0.20% | −5.0 |
Pancreatitis | 1.3 | 0.18% | −5.7 |
Other digestive diseases | 1.2 | 0.16% | −7.1 |
Neurological disorders | 43.1 | 5.84% | 0.1 |
Alzheimer's disease and other dementias | 35.4 | 4.80% | 0.6 |
Parkinson's disease | 4.6 | 0.62% | 0.8 |
Epilepsy | 1.7 | 0.23% | −10.7 |
Multiple sclerosis | 0.3 | 0.04% | −3.9 |
Motor neuron disease | 0.4 | 0.05% | 1.2 |
Other neurological disorders | 0.7 | 0.09% | 2.0 |
Mental disorders | 0.0 | 0.00% | 7.5 |
Eating disorders | 0.0 | 0.00% | 7.5 |
Anorexia nervosa | 0.0 | 0.00% | 5.5 |
Bulimia nervosa | 0.0 | 0.00% | 13.5 |
Substance use disorders | 4.3 | 0.58% | 2.0 |
Alcohol use disorders | 2.3 | 0.31% | −16.5 |
Drug use disorders | 2.1 | 0.28% | 34.1 |
Opioid use disorders | 1.4 | 0.19% | 49.4 |
Cocaine use disorders | 0.1 | 0.01% | 19.6 |
Amphetamine use disorders | 0.1 | 0.01% | 8.7 |
Other drug use disorders | 0.6 | 0.08% | 11.3 |
Diabetes and kidney diseases | 33.6 | 4.55% | 1.3 |
Diabetes mellitus | 17.5 | 2.37% | 1.2 |
Diabetes mellitus type 1 | 4.3 | 0.58% | −11.0 |
Diabetes mellitus type 2 | 13.2 | 1.79% | 5.9 |
Chronic kidney disease | 15.9 | 2.16% | 1.5 |
Chronic kidney disease due to diabetes mellitus type 1 | 0.9 | 0.12% | −1.2 |
Chronic kidney disease due to diabetes mellitus type 2 | 4.5 | 0.61% | 4.2 |
Chronic kidney disease due to hypertension | 4.6 | 0.62% | 3.2 |
Chronic kidney disease due to glomerulonephritis | 2.4 | 0.33% | −1.3 |
Chronic kidney disease due to other and unspecified causes | 3.4 | 0.46% | −1.4 |
Acute glomerulonephritis | 0.1 | 0.01% | −9.5 |
Skin and subcutaneous diseases | 1.3 | 0.18% | 8.1 |
Bacterial skin diseases | 1.0 | 0.14% | 12.7 |
(Cellulitis) | 0.2 | 0.03% | 19.6 |
(Pyoderma) | 0.8 | 0.11% | 10.5 |
Decubitus ulcer | 0.3 | 0.04% | −5.1 |
Other skin and subcutaneous diseases | 0.1 | 0.01% | 3.3 |
Musculoskeletal disorders | 1.6 | 0.22% | −0.1 |
Rheumatoid arthritis | 0.6 | 0.08% | −5.9 |
Other musculoskeletal disorders | 1.0 | 0.14% | 3.9 |
Other non-communicable diseases | 16.3 | 2.21% | −11.2 |
Congenital anomalies | 8.7 | 1.18% | −18.2 |
Neural tube defects | 0.9 | 0.12% | −16.5 |
Congenital heart anomalies | 3.9 | 0.53% | −21.8 |
Orofacial clefts | 0.1 | 0.01% | −41.9 |
Down syndrome | 0.4 | 0.05% | −5.2 |
Other chromosomal abnormalities | 0.3 | 0.04% | 0.3 |
Congenital musculoskeletal and limb anomalies | 0.2 | 0.03% | −12.8 |
Urogenital congenital anomalies | 0.2 | 0.03% | −8.5 |
Digestive congenital anomalies | 0.8 | 0.11% | −19.3 |
Other congenital anomalies | 2.1 | 0.28% | −15.9 |
Urinary diseases and male infertility | 3.6 | 0.49% | 5.7 |
Urinary tract infections | 2.7 | 0.37% | 10.9 |
Urolithiasis (Kidney stone disease) | 0.2 | 0.03% | −1.2 |
Other urinary diseases | 0.7 | 0.09% | −9.9 |
Gynecological diseases | 0.1 | 0.01% | −2.6 |
Uterine fibroids | 0.0 | 0.00% | 8.1 |
Polycystic ovarian syndrome | 0.0 | 0.00% | 1.0 |
Endometriosis | 0.0 | 0.00% | −3.2 |
Genital prolapse | 0.0 | 0.00% | −24.1 |
Other gynecological diseases | 0.1 | 0.01% | −3.6 |
Hemoglobinopathies and hemolytic anaemias | 1.4 | 0.19% | −11.3 |
Thalassemias | 0.1 | 0.01% | −27.9 |
Sickle cell disorders | 0.5 | 0.07% | −3.1 |
G6PD deficiency | 0.2 | 0.03% | −7.1 |
Other hemoglobinopathies and hemolytic anaemias | 0.6 | 0.08% | −16.1 |
Endocrine, metabolic, blood, and immune disorders | 1.9 | 0.26% | 0.8 |
Sudden infant death syndrome | 0.6 | 0.08% | −20.2 |
III. Injuries | 57.9 | 7.85% | −13.7 |
Transport injuries | 17.0 | 2.30% | −17.0 |
Road injuries | 15.8 | 2.14% | −17.1 |
Pedestrian road injuries | 6.2 | 0.84% | −21.4 |
Cyclist road injuries | 0.9 | 0.12% | −8.8 |
Motorcyclist road injuries | 2.9 | 0.39% | −12.4 |
Motor vehicle road injuries | 5.8 | 0.79% | −15.6 |
Other road injuries | 0.1 | 0.01% | −19.4 |
Other transport injuries | 1.2 | 0.16% | −15.5 |
Unintentional injuries | 23.8 | 3.23% | −15.3 |
Falls | 9.2 | 1.25% | −2.8 |
Drowning | 4.0 | 0.54% | −27.3 |
Fire, heat, and hot substances | 1.6 | 0.22% | −22.9 |
Poisonings | 0.9 | 0.12% | −20.8 |
(Poisoning by carbon monoxide) | 0.5 | 0.07% | −26.6 |
(Poisoning by other means) | 0.5 | 0.07% | −14.4 |
Exposure to mechanical forces | 1.8 | 0.24% | −20.3 |
(Unintentional firearm injuries) | 0.3 | 0.04% | −16.4 |
(Other exposure to mechanical forces) | 1.5 | 0.20% | −21.0 |
Adverse effects of medical treatment | 1.6 | 0.22% | −6.2 |
Animal contact | 1.1 | 0.15% | −16.0 |
(Venomous animal contact) | 0.9 | 0.12% | −16.0 |
(Non-venomous animal contact) | 0.1 | 0.01% | −16.1 |
Foreign body | 1.7 | 0.23% | −14.1 |
(Pulmonary aspiration and foreign body in airway) | 1.6 | 0.22% | −13.9 |
(Foreign body in other body part) | 0.1 | 0.01% | −15.8 |
Environmental heat and cold exposure | 0.7 | 0.09% | −29.4 |
Exposure to forces of nature | 0.1 | 0.01% | −45.8 |
Other unintentional injuries | 1.2 | 0.16% | −25.8 |
Self-harm and interpersonal violence | 17.1 | 2.32% | −7.6 |
Self-harm | 10.0 | 1.36% | −14.8 |
Self-harm by firearm | 0.8 | 0.11% | −10.3 |
Self-harm by other specified means | 9.2 | 1.25% | −15.2 |
Interpersonal violence | 5.2 | 0.70% | −11.1 |
Assault by firearm | 2.2 | 0.30% | −3.6 |
Assault by sharp object | 1.2 | 0.16% | −22.3 |
Assault by other means | 1.8 | 0.24% | −11.5 |
Conflict and terrorism | 1.7 | 0.23% | 98.4 |
Executions and police conflict | 0.2 | 0.03% | 172.4 |
Cause of premature death | Person-years lost |
---|---|
Cancer | 8.6 million |
Heart disease and strokes | 8.8 million |
Accidents and other injuries | 5.9 million |
All other causes | 13.6 million |
Cause of premature death | Person-years lost |
---|---|
(Use/Accessibility/... of) firearms | 1.42 million [9] [10] |
Motor vehicle crashes | 1.34 million [10] |
All other causes |
Causes of death can be structured into immediate causes of death or primary causes of death, conditions leading to cause of death, underlying causes, and further relevant conditions that may have contributed to fatal outcome. [12]
According to the WHO, underlying causes are "the disease[s] or injury[ies] which initiated the train[s] of morbid events leading directly to death, or the circumstances of the accident or violence which produced the fatal injury". [13]
Malnutrition can be identified as an underlying cause for shortened life. [14] 70% of childhood deaths (age 0–4) are reportedly due to diarrheal illness, acute respiratory infection, malaria and immunizable disease. However 56% of these childhood deaths can be attributed to the effects of malnutrition as an underlying cause. [15] The effects of malnutrition include increased susceptibility to infection, [16] musculature wasting, skeletal deformities and neurologic development delays. [17] According to the World Health Organization, malnutrition is named as the biggest contributor to child mortality [18] with 36 million deaths in 2005 related to malnutrition. [19]
Beyond undernutrition and micronutrient deficiencies, malnutrition also includes obesity, [20] which predisposes towards several chronic diseases, including 13 different types of cancer, cardiovascular diseases, and type 2 diabetes. [21] [22] [23] [24] [25] [26] [27] According to the WHO, being "chronically overweight and obesity are among the leading causes of death and disability in Europe", with estimates suggesting they cause more than 1.2 million deaths annually, corresponding to over 13% of total mortality in the region. [27] Various types of health policy could counter the trend and reduce obesity. [28]
Diets, not just in terms of obesity but also of food composition, can have a major impact on underlying factors (), with reviews suggesting i.a. that a 20-years old male in Europe who switches to the "optimal diet" could gain a mean of ~13.7 years of life and a 60-years old female in the U.S. switching to the "optimal diet" could gain a mean of ~8.0 years of life. It found the largest gains would be made by eating more legumes, whole grains, and nuts, and less red meat and processed meat. It also contains no consumption of sugar-sweetened beverages (moving from "typical Western diet" of 500 g/day to 0 g/day). [29] [30]
A review concluded that, like in 2015, pollution (¾ from air pollution) was responsible for 9 million premature deaths in 2019 (one in six deaths). It concluded that little real progress against pollution can be identified. [31] [32]
Overall, air pollution causes the deaths of around ca. 7 million people worldwide each year, and is the world's largest single environmental health risk, according to the WHO (2012) and the IEA (2016). [33] [34] [35]
The IEA notes that many of root causes and cures can be found in the energy industry and suggests solutions such as retiring polluting coal-fired power plants and to establishing stricter standards for motor vehicles. [35] In September 2020 the European Environment Agency reported that environmental factors such as air pollution and heatwaves contributed to around 13% of all human deaths in EU countries in 2012 (~630,000). [36] A 2021 study using a high spatial resolution model and an updated concentration-response function finds that 10.2 million global excess deaths in 2012 and 8.7 million in 2018 – or a fifth[ dubious – discuss ] – were due to air pollution generated by fossil fuel combustion, significantly higher than earlier estimates and with spatially subdivided mortality impacts. [37] [38]
A 2020 study indicates that the global mean loss of life expectancy (LLE) from air pollution in 2015 was 2.9 years, substantially more than, for example, 0.3 years from all forms of direct violence, albeit a significant fraction of the LLE is considered to be unavoidable. [39]
According to the WHO, worldwide, about 0.5 million deaths are attributable to uses of drugs, with more than 70% of these being related to opioids, with overdose being the direct cause of more than 30% of those deaths. [40]
Various uses of various opioids accounts for many deaths worldwide, termed opioid epidemic. Nearly 75% of the 91,799 drug overdose deaths in 2020 in the United States involved an opioid. [41]
Not all nervous system drugs are associated with risks for contributing to deaths as an underlying factor or for uses that are. In some cases, potentially harmful or harmful drugs can be substituted or weaned off with the help of pharmacological alternatives – such as potentially NAC and modafinil in the case of cocaine dependence [42] – whose uses are not considered to be underlying causes of deaths. In some cases, they – including caffeine – can help improve general health such as, directly and indirectly, physical fitness and mental health either in general or in specific ranges of informed administrations.
Smoking is the leading cause of preventable death in the United States. It is an underlying cause of many cancers, cardiovascular diseases, stroke, and respiratory diseases. [43]
Smoking usually refers to smoking of tobacco products. E-cigarettes also pose large risks to health. [44] The health impacts of tobacco-alternative products such as various herbs and the use of charcoal filters [45] [46] are often investigated less, with existing research suggesting only limited benefits over tobacco smoking. Some smokers may benefit from switching to a vaporizer as a harm reduction measure if they do not quit, which however also only has little robust evidence. [47] [48] [49] Frequency of use is a major factor in the level of risks [44] or permanence and extent of health impacts.
A review found smoking and second-hand smoke to be a global underlying cause of death as large as pollution, which in that analysis was the largest major underlying factor. [31]
Globally, alcohol use was the seventh leading risk factor for both deaths and DALY in 2016. A review found that the "risk of all-cause mortality, and of cancers specifically, rises with increasing levels of consumption, and the level of consumption that minimises health loss is zero". [50]
A study found that 9.4% of global deaths between 2000 and 2019 – ~5 million annually – can be attributed to extreme temperature with cold-related ones making up the larger share and decreasing and heat-related ones making up ~0.91% and increasing. Incidences of heart attacks, cardiac arrests and strokes increase under such conditions. [51] [52]
In a global assessment, scientists reported, based on medical records, that antibiotic resistance may have contributed to ~4.95 million (3.62–6.57) deaths in 2019, with 1.3 million directly attributed – the latter being more than deaths than from e.g. AIDS or Malaria, [53] [54] despite being project to rise substantially. [55]
Co-existing diseases can but don't necessarily contribute to death [56] to various degrees in various ways.
In some cases, comorbidities can be major causes with complex underlying mechanisms, and a range of comorbidities can be present once. [57]
Pandemics [58] [59] and infectious diseases or epidemics can be major underlying causes of deaths. In a small study of 26 decedents,[ better source needed ] the pandemized COVID-19 and infection-related disease were "major contributors" to patients' death. [12] Such deaths are sometimes evaluated via excess deaths per capita – the COVID-19 pandemic deaths between January 1, 2020, and December 31, 2021, are estimated to be ~18.2 million. Research could help distinguish the proportions directly caused by COVID-19 from those caused by indirect consequences of the pandemic. [60] [61]
Mental health issues and related issues such as economic conditions [62] and/or various uses of nervous system drugs can contribute to causes such as suicide [63] [64] or risky behavior related deaths.
Loneliness or insufficient social relationships is also a major underlying factor, which may be comparable to smoking and, according to one meta-analysis of 148 studies, "exceeds many well-known risk factors for mortality (e.g., obesity, physical inactivity)". [65] Injuries and violence are "the leading causes of death among children, adolescents, and young adults in the US" with underlying risk factors for such including "detrimental community, family, or individual circumstances" that increase the likelihood of violence. Types of preventive measures may include support of "healthy development of individuals, families, schools, and communities, and build[ing] capacity for positive relationships and interactions". [66]
Lifestyle factors [67] – including physical inactivity, [68] and tobacco smoking and excessive alcohol use , [69] healthy eating [70] – and/or general health – including fitness beyond healthy diet and non-obesity – can be underlying contributors to death. For example, in a sample of U.S. adults, ~9.9% deaths of adults aged 40 to 69 years and ~7.8% adults aged 70 years or older were attributed to inadequate levels of physical activity. [71]
Traditionally aging is not considered as a cause of death. It is believed that there is always a more direct cause, and usually it is one of many age-related diseases. It is estimated that, as a root cause, the aging process underlies 2/3 of all death in the world (approximately 100,000 people per day in 2007). In highly developed countries this proportion can reach 90%. [72] There are requests of granting aging an official status of a disease and treating it directly (such as via dietary changes and senolytics). [73] [74] [75] [76] [77]
Examples of aging-associated diseases are atherosclerosis and cardiovascular disease, cancer, arthritis, cataracts, osteoporosis, type 2 diabetes, hypertension and Alzheimer's disease. The incidence of all of these diseases increases exponentially with age. [78]
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. [79] In industrialized nations, the proportion is higher, reaching 90%. [79]Economics and policies may be factors underlying deaths at a more fundamental level. For example, economics may result in certain therapies or screenings being expensive rather than produced at an affordable price or medication costs being too high for an individual to afford them even if they are made available at low cost, poverty can affect nutrition, marketing can increase the consumption of unhealthy products, incentives and regulations for health and healthy environments may be weak or missing, and occupational safety and humans' environment can suffer due to economic pressures for low production costs and high consumption. Health policy and health systems can have impacts on deaths and thereby may also be a factor of deaths, also including for example education policy (e.g. health illiteracy), climate policy (e.g. future water scarcity impacts) and transportation policy (e.g. motor vehicle accidents, pollution and physical activity),[ citation needed ] as well as in/action on policy-influenceable physical inactivity. [80] 'Recent financial difficulties' appears to be a factor of mortality. [81] One study estimated how many people die from poverty in the U.S. [82] Low socioeconomic status, as determined by economics, appears to reduce life expectancy. [83] The current systemic incentive for maximized profits may inhibit global occupational health and safety. [84] The negative externality of environmental damages can have substantial impacts on global healthcare. [85] [ additional citation(s) needed ]
Underlying factors can also be analyzed per cause of (or major contributor to) death and can be distinguished between "preventable" factors and other factors. For example, various Global Burden of Disease Studies investigate such factors and quantify recent developments – one such systematic analysis analyzed the (non)progress on cancer and its causes during the 2010–19-decade, indicating that 2019, ~44% of all cancer deaths – or ~4.5 M deaths or ~105 million lost disability-adjusted life years – were due to known clearly preventable risk factors, led by smoking, alcohol use and high BMI. [86]
Electronic health records, [87] [88] [54] death certificates [89] [56] [90] [91] as well as post-mortem analyses (such as post-mortem computed tomography and other other pathology) [92] can and are often used to investigate underlying causes of deaths such as for mortality statistics, [93] [94] relevant to progress measurements. [95] Improvements to this reporting, where e.g. certain diseases are often under-reported or underlying cause-of-death (COD) statement are incorrect, [96] [97] [98] could ultimately improve public health. [99] [100] One reason for this is that from "a public health point of view, preventing this first disease or injury will result in the greatest health gain". [95]
With an average of 123.6 deaths per 100,000 from 2003 through 2010 the most dangerous occupation in the United States is the cell tower construction industry. [103]
Body mass index (BMI) is a value derived from the mass (weight) and height of a person. The BMI is defined as the body mass divided by the square of the body height, and is expressed in units of kg/m2, resulting from mass in kilograms (kg) and height in metres (m).
Coronary artery disease (CAD), also called coronary heart disease (CHD), or ischemic heart disease (IHD), is a type of heart disease involving the reduction of blood flow to the cardiac muscle due to a build-up of atheromatous plaque in the arteries of the heart. It is the most common of the cardiovascular diseases. CAD can cause stable angina, unstable angina, myocardial ischemia, and myocardial infarction.
Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it can potentially have negative effects on health. People are classified as obese when their body mass index (BMI)—a person's weight divided by the square of the person's height—is over 30 kg/m2; the range 25–30 kg/m2 is defined as overweight. Some East Asian countries use lower values to calculate obesity. Obesity is a major cause of disability and is correlated with various diseases and conditions, particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, and osteoarthritis.
Infant mortality is the death of an infant before the infant's first birthday. The occurrence of infant mortality in a population can be described by the infant mortality rate (IMR), which is the number of deaths of infants under one year of age per 1,000 live births. Similarly, the child mortality rate, also known as the under-five mortality rate, compares the death rate of children up to the age of five.
Type 2 diabetes (T2D), formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urination, fatigue and unexplained weight loss. Other symptoms include increased hunger, having a sensation of pins and needles, and sores (wounds) that heal slowly. Symptoms often develop slowly. Long-term complications from high blood sugar include heart disease, stroke, diabetic retinopathy, which can result in blindness, kidney failure, and poor blood flow in the lower-limbs, which may lead to amputations. The sudden onset of hyperosmolar hyperglycemic state may occur; however, ketoacidosis is uncommon.
Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.
Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. CVDs constitute a class of diseases that includes: coronary artery diseases, heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, arrhythmia, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease, thromboembolic disease, and venous thrombosis.
Preventive healthcare, or prophylaxis, is the application of healthcare measures to prevent diseases. Disease and disability are affected by environmental factors, genetic predisposition, disease agents, and lifestyle choices, and are dynamic processes that begin before individuals realize they are affected. Disease prevention relies on anticipatory actions that can be categorized as primal, primary, secondary, and tertiary prevention.
The Framingham Heart Study is a long-term, ongoing cardiovascular cohort study of residents of the city of Framingham, Massachusetts. The study began in 1948 with 5,209 adult subjects from Framingham, and is now on its third generation of participants. Prior to the study almost nothing was known about the epidemiology of hypertensive or arteriosclerotic cardiovascular disease. Much of the now-common knowledge concerning heart disease, such as the effects of diet, exercise, and common medications such as aspirin, is based on this longitudinal study. It is a project of the National Heart, Lung, and Blood Institute, in collaboration with Boston University. Various health professionals from the hospitals and universities of Greater Boston staff the project.
Global health is the health of populations in a worldwide context; it has been defined as "the area of study, research, and practice that places a priority on improving health and achieving equity in health for all people worldwide". Problems that transcend national borders or have a global political and economic impact are often emphasized. Thus, global health is about worldwide health improvement, reduction of disparities, and protection against global threats that disregard national borders, including the most common causes of human death and years of life lost from a global perspective.
In a 2018 study on 599,912 drinkers, a roughly linear association was found with alcohol consumption and a higher risk of stroke, coronary artery disease excluding myocardial infarction, heart failure, fatal hypertensive disease, and fatal aortic aneurysm, even for moderate drinkers. Alcohol abuse may also cause occupational cardiovascular disease. The American Heart Association states that people who are currently non-drinkers should not start drinking alcohol.
Intrauterine hypoxia occurs when the fetus is deprived of an adequate supply of oxygen. It may be due to a variety of reasons such as prolapse or occlusion of the umbilical cord, placental infarction, maternal diabetes and maternal smoking. Intrauterine growth restriction may cause or be the result of hypoxia. Intrauterine hypoxia can cause cellular damage that occurs within the central nervous system. This results in an increased mortality rate, including an increased risk of sudden infant death syndrome (SIDS). Oxygen deprivation in the fetus and neonate have been implicated as either a primary or as a contributing risk factor in numerous neurological and neuropsychiatric disorders such as epilepsy, attention deficit hyperactivity disorder, eating disorders and cerebral palsy.
Diseases of poverty, also known as poverty-related diseases, are diseases that are more prevalent in low-income populations. They include infectious diseases, as well as diseases related to malnutrition and poor health behaviour. Poverty is one of the major social determinants of health. The World Health Report (2002) states that diseases of poverty account for 45% of the disease burden in the countries with high poverty rate which are preventable or treatable with existing interventions. Diseases of poverty are often co-morbid and ubiquitous with malnutrition. Poverty increases the chances of having these diseases as the deprivation of shelter, safe drinking water, nutritious food, sanitation, and access to health services contributes towards poor health behaviour. At the same time, these diseases act as a barrier for economic growth to affected people and families caring for them which in turn results into increased poverty in the community. These diseases produced in part by poverty are in contrast to diseases of affluence, which are diseases thought to be a result of increasing wealth in a society.
The Global Burden of Disease Study (GBD) is a comprehensive regional and global research program of disease burden that assesses mortality and disability from major diseases, injuries, and risk factors. GBD is a collaboration of over 12,000 researchers from more than 160 countries. Under principal investigator Christopher J.L. Murray, GBD is based in the Institute for Health Metrics and Evaluation (IHME) at the University of Washington and funded by the Bill and Melinda Gates Foundation.
A non-communicable disease (NCD) is a disease that is not transmissible directly from one person to another. NCDs include Parkinson's disease, autoimmune diseases, strokes, heart diseases, cancers, diabetes, chronic kidney disease, osteoarthritis, osteoporosis, Alzheimer's disease, cataracts, and others. NCDs may be chronic or acute. Most are non-infectious, although there are some non-communicable infectious diseases, such as parasitic diseases in which the parasite's life cycle does not include direct host-to-host transmission.
The obesity paradox is the finding in some studies of a lower mortality rate for overweight or obese people within certain subpopulations. The paradox has been observed in people with cardiovascular disease and cancer. Explanations for the paradox range from excess weight being protective to the statistical association being caused by methodological flaws such as confounding, detection bias, reverse causality, or selection bias.
Preventable causes of death are causes of death related to risk factors which could have been avoided. 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 driving—which contribute to a number of different diseases. Such risk factors are usually not recorded directly on death certificates, although they are acknowledged in medical reports.
Obesity is a risk factor for many chronic physical and mental illnesses.
The Institute for Health Metrics and Evaluation (IHME) is a public health research institute of the University of Washington in Seattle. Its research fields are global health statistics and impact evaluation.
Undernutrition in children, occurs when children do not consume enough calories, protein, or micronutrients to maintain good health. It is common globally and may result in both short and long term irreversible adverse health outcomes. Undernutrition is sometimes used synonymously with malnutrition, however, malnutrition could mean both undernutrition or overnutrition. The World Health Organization (WHO) estimates that malnutrition accounts for 54 percent of child mortality worldwide, which is about 1 million children. Another estimate, also by WHO, states that childhood underweight is the cause for about 35% of all deaths of children under the age of five worldwide.