This page connects key medical statistics that show how illness risk builds—through chronic conditions like high blood pressure, obesity, diabetes, and heart disease, and through major cancers. You’ll also see the scale of infectious diseases such as tuberculosis, malaria, HIV, and COVID-19, plus mental health conditions including anxiety and suicide. As you scroll, look for patterns in who is affected most in the US and worldwide.
Key Takeaways
- Cancer is the second leading cause of death globally, causing 10 million deaths in 2020.
- In the US, 1 in 6 men and 1 in 7 women will be diagnosed with cancer in their lifetime.
- Lung cancer is the leading cause of cancer death, killing 1.8 million worldwide annually.
- Heart disease is the leading cause of death in the United States, accounting for 1 in 5 deaths.
- Approximately 697,000 people die of heart disease in the US each year.
- About 0.8% of US adults have had a heart attack.
- Diabetes affects 38.4 million people in the US (11.6% of population).
- 97.6 million US adults have prediabetes.
- Obesity affects 42.4% of US adults.
- COVID-19 caused over 7 million deaths worldwide as of 2023.
- Tuberculosis kills 1.6 million people annually.
- HIV affects 39 million people globally.
- Mental illness affects 1 in 5 US adults yearly.
- Anxiety disorders affect 19.1% of US adults.
- 50 million US adults have mental illness.
Cancer and major chronic diseases drive millions of deaths worldwide, alongside growing burdens of heart disease and diabetes.
Related reading
01 · Category
Cancer26 stats
01
Cancer is the second leading cause of death globally, causing 10 million deaths in 2020.
02
In the US, 1 in 6 men and 1 in 7 women will be diagnosed with cancer in their lifetime.
03
Lung cancer is the leading cause of cancer death, killing 1.8 million worldwide annually.
04
Breast cancer accounts for 12% of new cancer cases in women globally.
05
Colorectal cancer is the third most common cancer worldwide.
06
Prostate cancer is diagnosed in 1 in 8 men in the US.
07
Survival rate for all cancers combined is 68% in the US.
08
Skin cancer is the most common cancer in the US, with over 5 million diagnoses yearly.
09
Pancreatic cancer has a 5-year survival rate of 12%.
10
Globally, 30-50% of cancers are preventable.
11
Leukemia affects 60,000 new cases yearly in the US.
12
Cervical cancer kills 350,000 women annually worldwide.
13
Over 18 million new cancer cases in 2020 globally.
14
Melanoma skin cancer incidence has risen 30-fold since 1930s.
15
Liver cancer deaths: 830,000 globally per year.
16
US cancer deaths: 606,520 in 2023.
17
HPV causes 5% of all cancers worldwide.
18
Non-Hodgkin lymphoma: 80,000 new US cases yearly.
19
Cancer treatment costs $208 billion annually in US.
20
Bladder cancer: 83,000 new US cases in 2023.
21
Kidney cancer survival rate: 76% 5-year.
22
Thyroid cancer incidence doubled in last 30 years in US.
23
Brain cancer: 24,000 new US cases yearly.
24
Ovarian cancer: 19,680 new US cases in 2023.
25
Uterine cancer rising 2% per year in US.
26
Multiple myeloma: 35,000 new US cases yearly.
Interpretation
Cancer Interpretation
Cancer remains a major global threat, responsible for 10 million deaths in 2020, and it affects people across multiple cancers, with 1 in 6 men and 1 in 7 women in the US facing a lifetime diagnosis.
02 · Category
Cardiovascular Diseases20 stats
01
Heart disease is the leading cause of death in the United States, accounting for 1 in 5 deaths.
02
Approximately 697,000 people die of heart disease in the US each year.
03
About 0.8% of US adults have had a heart attack.
04
High blood pressure affects nearly half of US adults (47.6%).
05
Stroke kills 1 in 6 people who experience it.
06
Globally, cardiovascular diseases cause 17.9 million deaths annually.
07
Atrial fibrillation affects 2.7 to 6.1 million people in the US.
08
Coronary heart disease kills over 370,000 people yearly in the US.
09
About 1 in 13 US adults has coronary artery disease.
10
Heart failure affects 6.7 million US adults.
11
45% of US adults have hypertension.
12
Stroke occurs every 40 seconds in the US.
13
Cardiovascular disease causes 4 out of 10 deaths worldwide.
14
Peripheral artery disease affects 8.5 million Americans.
15
Women account for 44% of heart failure cases in the US.
16
1 in 3 US adults has high blood pressure.
17
Heart attacks occur every 40 seconds in the US.
18
Globally, 1.28 billion adults have hypertension.
19
US spends $363 billion annually on cardiovascular diseases.
20
80% of cardiovascular diseases are preventable.
Interpretation
Cardiovascular Diseases Interpretation
Cardiovascular diseases are an urgent public health burden, with heart disease alone causing 1 in 5 US deaths and about 697,000 deaths each year, while globally the toll reaches 17.9 million deaths annually.
03 · Category
Diabetes And Obesity20 stats
01
Diabetes affects 38.4 million people in the US (11.6% of population).
02
97.6 million US adults have prediabetes.
03
Obesity affects 42.4% of US adults.
04
Type 2 diabetes accounts for 90-95% of US diabetes cases.
05
Diabetes causes 100,000 preventable deaths yearly in US.
06
Globally, 537 million adults have diabetes (2021).
07
Obesity-related medical costs: $173 billion annually in US.
08
1 in 3 US children are overweight or obese.
09
Severe obesity affects 9.2% of US adults.
10
Diabetes complications include kidney failure (44% of cases).
11
23.8 million US diagnosed with obesity.
12
Gestational diabetes affects 6-9% of US pregnancies.
13
Obesity prevalence highest in non-Hispanic Black adults (49.9%).
14
Diabetes is 7th leading cause of death in US.
15
90 million US adults over 65 are obese.
16
Bariatric surgery reduces diabetes by 78% in some cases.
17
Childhood obesity tripled since 1970s in US.
18
Insulin resistance precedes type 2 diabetes in 80-90% cases.
19
Obesity increases diabetes risk 7-12 fold.
20
Globally, obesity tripled since 1975.
Interpretation
Diabetes And Obesity Interpretation
With 38.4 million Americans living with diabetes and 42.4% of adults affected by obesity, the overlap points to a major Diabetes and Obesity burden as nearly 100 million US adults have either diabetes or prediabetes and type 2 diabetes makes up 90 to 95% of cases.
More related reading
04 · Category
Infectious Diseases19 stats
01
COVID-19 caused over 7 million deaths worldwide as of 2023.
02
Tuberculosis kills 1.6 million people annually.
03
HIV affects 39 million people globally.
04
Malaria causes 619,000 deaths yearly, mostly children.
05
Hepatitis B infects 296 million chronically.
06
Influenza causes 290,000-650,000 respiratory deaths yearly.
07
Measles cases surged 79% globally in 2022.
08
1.3 million TB deaths in 2022.
09
Dengue affects 400 million people yearly.
10
10 million syphilis cases globally in 2022.
11
Polio cases: only 12 wild cases in 2023.
12
Cholera outbreaks in 46 countries in 2023.
13
214 million malaria cases in 2022.
14
1.15 million HIV deaths in 2021.
15
Hepatitis C: 58 million chronically infected.
16
Norovirus causes 685 million cases yearly.
17
25 million typhoid cases globally per year.
18
Leprosy: 127,000 new cases in 2022.
19
Mpox cases: over 100,000 since 2022.
Interpretation
Infectious Diseases Interpretation
Infectious diseases are driving enormous, persistent global loss, with COVID-19 exceeding 7 million deaths worldwide by 2023 while tuberculosis still kills 1.6 million people each year and HIV remains a chronic burden affecting 39 million.
05 · Category
Mental Health And Neurology20 stats
01
Mental illness affects 1 in 5 US adults yearly.
02
Anxiety disorders affect 19.1% of US adults.
03
50 million US adults have mental illness.
04
Suicide is 10th leading cause of death in US.
05
Depression affects 280 million people globally.
06
1 in 6 US youth aged 6-17 have mental health disorder.
07
Alzheimer's affects 6.7 million US adults over 65.
08
Bipolar disorder affects 2.8% of US adults.
09
PTSD prevalence: 6% among US adults.
10
Schizophrenia affects 1.5 million US adults.
11
Globally, 970 million people live with mental disorder.
12
17.3% of US adults have had major depressive episode.
13
Parkinson's disease affects 1 million in US.
14
OCD affects 2.3% over lifetime in US.
15
Autism spectrum disorder: 1 in 36 US children.
16
Epilepsy affects 3.4 million US children and adults.
17
20% of US adults receive mental health treatment.
18
Dementia affects 55 million globally.
19
ADHD affects 9.4% of US children aged 2-17.
20
Eating disorders affect 9% of world population.
Interpretation
Mental Health And Neurology Interpretation
Mental health needs urgent focus because anxiety affects 19.1% of US adults and 50 million US adults live with mental illness, showing how widespread mental health and neurology challenges are across everyday life.
Reference
Cite This Report
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APA
Ryan Townsend. (2026, February 13). Medical Statistics. Gitnux. https://gitnux.org/medical-statistics
MLA
Ryan Townsend. "Medical Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/medical-statistics.
Chicago
Ryan Townsend. 2026. "Medical Statistics." Gitnux. https://gitnux.org/medical-statistics.
Sources & references
16 datasets cited across this report · attribution is report-level