Evidence / People living with a condition

How many people live with each condition

How many people live with each health condition, worldwide where a worldwide count exists, each figure with its source and its own words.

129 figures across 94 conditions, last read 7 Nov 2026. Each row opens the figure with its source and its own words.

Acid reflux (GERD) (2)

People living with gastroesophageal reflux disease (GERD) worldwide, 2021825.60 millionChen et al., Global, regional and national burdens of gastroesophageal reflux disease from 1990 to 2021 and projections to 2050 (GBD 2021), BMC Public Health 2025 · checked Individuals with gastro-oesophageal reflux disease (GORD) worldwide, pooled meta-analysis estimate1.03 billionNirwan et al., Global Prevalence and Risk Factors of Gastro-oesophageal Reflux Disease (GORD): Systematic Review with Meta-analysis, Sci Rep 2020 · checked

Acne (1)

Prevalent cases of acne vulgaris, worldwide, 2019231·2 millionBritish Journal of Dermatology 2022, Magnitude and temporal trend of acne vulgaris burden in 204 countries and territories (GBD 2019) · checked

ADHD (2)

Adults with persistent ADHD (childhood onset), worldwide, 2020139.84 millionSong et al., The prevalence of adult ADHD: a global systematic review and meta-analysis, J Glob Health 2021 · checked Adults with symptomatic ADHD (any onset), worldwide, 2020366.33 millionSong et al., The prevalence of adult ADHD: a global systematic review and meta-analysis, J Glob Health 2021 · checked

Alopecia areata (1)

Lifetime prevalence of physician-diagnosed alopecia areata, general population worldwide0.10%Br J Dermatol 2024, Global, regional and national epidemiology of alopecia areata: a systematic review and modelling study (PubMed 38332643) · checked

ALS (2)

Crude worldwide prevalence of ALS4.42 per 100,000 populationJournal of Neurology 2020, Global variation in prevalence and incidence of amyotrophic lateral sclerosis: a systematic review and meta-analysis · checked People living with ALS in the United States, 2018 (National ALS Registry)6.6 per 100,000Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration 2023, Prevalence of amyotrophic lateral sclerosis in the United States, 2018 · checked

Alzheimer's disease (1)

People living with dementia, worldwide (Alzheimer disease is the most common form)57 millionWHO fact sheet, Dementia · checked

Amyloidosis (2)

People with AL amyloidosis worldwide diagnosed in the preceding 20 years, 201874,000Orphanet J Rare Dis 2022, Global epidemiology of amyloid light-chain amyloidosis (PubMed 35854312) · checked ATTR amyloidosis prevalence across published studies (US to Portugal)6.1/million in the US to 232/million in PortugalOrphanet J Rare Dis 2025, Epidemiology of transthyretin (ATTR) amyloidosis: a systematic literature review (PubMed 39819351) · checked

Ankylosing spondylitis (4)

People with diagnosed ankylosing spondylitis in UK primary care records, 20170.18%RMD Open 2021, Changes in ankylosing spondylitis incidence, prevalence and time to diagnosis over two decades · checked Expected number of people with ankylosing spondylitis in Asia4.63-4.98 millionDean et al., Global prevalence of ankylosing spondylitis, Rheumatology (Oxford) 2014 · checked Expected number of people with ankylosing spondylitis in Europe1.30-1.56 millionDean et al., Global prevalence of ankylosing spondylitis, Rheumatology (Oxford) 2014 · checked Mean prevalence of ankylosing spondylitis in Europe (36 eligible studies across continents)23.8 in EuropeDean et al., Global prevalence of ankylosing spondylitis, Rheumatology 2014 · checked

Anxiety (1)

People with an anxiety disorder worldwide, 2023470 millionWHO fact sheet, Anxiety disorders · checked

Asthma (1)

People affected by asthma worldwide, 2023363 millionWHO fact sheet, Asthma · checked

Atrial fibrillation (1)

Prevalent cases of atrial fibrillation/flutter worldwide, 202152.55 millionGlobal burden and health inequality of atrial fibrillation/atrial flutter from 1990 to 2021 (GBD 2021) · checked

Autism (1)

People on the autism spectrum worldwide in 202161·8 millionGBD 2021 Autism Spectrum Collaborators, The global epidemiology and health burden of the autism spectrum, Lancet Psychiatry 2025 · checked

Back pain (1)

People with low back pain, worldwide619 millionWHO fact sheet, Low back pain · checked

Bipolar disorder (1)

People living with bipolar disorder worldwide, 202336 millionWHO fact sheet, Bipolar disorder · checked

Bladder cancer (1)

People alive within 5 years of a bladder cancer diagnosis, worldwide, 20241 978 407IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Breast cancer (1)

People alive within 5 years of a breast cancer diagnosis, worldwide, 20248 162 335IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Burnout (1)

Pooled prevalence of burnout among healthcare workers during COVID-1952%Frontiers in Psychiatry 2021, A Systematic Review and Meta-Analysis of Burnout Among Healthcare Workers During COVID-19 · checked

Celiac disease (2)

People in the general population with biopsy-confirmed celiac disease, pooled worldwide0.8%Gastroenterology 2026, Global Prevalence of Celiac Disease and Clinical Characteristics in the General Population: A Systematic Review and Meta-Analysis · checked Pooled global seroprevalence of celiac disease1.4%Singh et al., Global Prevalence of Celiac Disease: Systematic Review and Meta-analysis, Clin Gastroenterol Hepatol 2018 · checked

Chronic kidney disease (1)

Adults aged 20 and older with chronic kidney disease, 2023788 millionGBD 2023 Chronic Kidney Disease Collaborators, Lancet 2025 · checked

Chronic pain (3)

US adults with chronic pain (pain on most days or every day for 3 months), 202151.6 millionRikard et al. (CDC), Chronic Pain Among Adults: United States, 2019-2021, MMWR 2023 · checked Adults living with pain worldwide (estimate)20%Goldberg and McGee, Pain as a global public health priority, BMC Public Health 2011 · checked Adults in the general population with chronic pain, pooled worldwide26.99%Indian Journal of Medical Research 2026, Prevalence of chronic pain in the general population: A systematic review and meta-analysis · checked

Colorectal cancer (1)

People alive within 5 years of a colorectal cancer diagnosis, worldwide, 20245 909 291IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

COPD (1)

People aged 30 to 79 with COPD (GOLD definition), 2019391·9 millionAdeloye et al., Global, regional, and national prevalence of, and risk factors for, COPD in 2019, Lancet Respir Med 2022 · checked

Coronary heart disease (1)

Prevalent cases of ischaemic heart disease worldwide, 2019197 millionRoth et al., Global Burden of Cardiovascular Diseases and Risk Factors, 1990-2019, J Am Coll Cardiol 2020 · checked

Crohn's disease (3)

People living with inflammatory bowel disease (Crohn's disease and ulcerative colitis together) worldwide, 20176·8 millionLancet Gastroenterology & Hepatology 2020, The global, regional, and national burden of inflammatory bowel disease in 195 countries and territories, 1990-2017 (GBD 2017) · checked People living with inflammatory bowel disease (Crohn's and ulcerative colitis together) worldwide, 20213.83 millionAmerican Journal of Gastroenterology 2025, Disproportionately Increasing Incidence of Inflammatory Bowel Disease in Female Patients and the Elderly: An Update Analysis from the Global Burden of Disease Study 2021 · checked Highest reported national prevalence of Crohn's disease (Germany)322 per 100 000Ng et al., Worldwide incidence and prevalence of inflammatory bowel disease in the 21st century, Lancet 2017 · checked

Cystic fibrosis (4)

People living with cystic fibrosis in the United States, 202038,804Journal of Cystic Fibrosis 2023, Cystic fibrosis prevalence in the United States and participation in the Cystic Fibrosis Foundation Patient Registry · checked Mean prevalence of cystic fibrosis in the 27 EU countries0.737/10,000Farrell, The prevalence of cystic fibrosis in the European Union, J Cyst Fibros 2008 · checked People estimated to be living with cystic fibrosis across 94 countries162,428Journal of Cystic Fibrosis 2022, Worldwide rates of diagnosis and effective treatment for cystic fibrosis · checked People estimated to have cystic fibrosis (diagnosed and undiagnosed), global estimate across 96 countries188,336Pediatric Pulmonology 2024, International disparities in diagnosis and treatment access for cystic fibrosis · checked

Depression (1)

People with depression worldwide, 2023322 millionWHO fact sheet, Depression · checked

Eating disorders (1)

People who experienced an eating disorder in 2023, worldwide18 millionWHO fact sheet, Mental disorders (11 September 2026), eating disorders section · checked

Eczema (1)

People with atopic dermatitis, worldwide, 2021129 millionLancet Respiratory Medicine 2025, Global, regional, and national burden of asthma and atopic dermatitis, 1990-2021 (GBD 2021) · checked

Ehlers-Danlos syndrome (2)

Overall prevalence of Ehlers-Danlos syndromes1 in 5000The Ehlers-Danlos Society, Are the Ehlers-Danlos Syndromes and Hypermobility Spectrum Disorders Rare or Common? · checked All types of Ehlers-Danlos syndrome combined, worldwideat least 1 in 5,000NIH MedlinePlus Genetics, Ehlers-Danlos syndrome (Frequency) · checked

Endometrial cancer (1)

People alive within 5 years of a endometrial (corpus uteri) cancer diagnosis, worldwide, 20241 469 143IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Endometriosis (1)

Reproductive-age women with endometriosis worldwide190 million (10%)WHO fact sheet, Endometriosis · checked

Epilepsy (1)

People with epilepsy, worldwidearound 50 millionWHO fact sheet, Epilepsy · checked

Fatty liver disease (2)

People with metabolic dysfunction-associated steatotic liver disease (MASLD) worldwide in 20211.27 billionDanpanichkul et al., The Rising Global Burden of MASLD and Other Metabolic Diseases (2000-2021), United European Gastroenterol J 2025 · checked Global prevalence of nonalcoholic fatty liver disease (NAFLD), pooled from population studies 1990 to 201930.05%Younossi et al., The global epidemiology of NAFLD and NASH: a systematic review, Hepatology 2023 · checked

Fibromyalgia (2)

People in the general population with fibromyalgia, pooled worldwide1.40%Anesthesia & Analgesia 2026, The Prevalence of Fibromyalgia in the General Population and At-Risk Subpopulations: A Systematic Review and Meta-Analysis · checked Prevalence of fibromyalgia in the general population, range across studiesbetween 0.2 and 6.6%Marques et al., Prevalence of fibromyalgia: literature review update, Rev Bras Reumatol 2017 · checked

Gestational diabetes (1)

Global standardized prevalence of gestational diabetes (IADPSG criteria), IDF Diabetes Atlas 202114.0%Wang et al., IDF Diabetes Atlas: Estimation of Global and Regional Gestational Diabetes Mellitus Prevalence for 2021 by IADPSG Criteria, Diabetes Res Clin Pract 2022 · checked

Glaucoma (2)

People aged 40 to 80 with glaucoma worldwide, projected for 202076.0 millionTham et al., Global prevalence of glaucoma and projections of glaucoma burden through 2040: a systematic review and meta-analysis, Ophthalmology 2014 · checked People aged 40 and over living with open-angle glaucoma worldwide, 202480.5 (95% CI, 75.4-85.6) millionAmerican Journal of Ophthalmology 2026, Global Glaucoma Prevalence: Burden and Projection to 2060 · checked

Gout (1)

People living with gout, 202055·8 millionGBD 2021 Gout Collaborators, Global, regional, and national burden of gout, 1990-2020, and projections to 2050, Lancet Rheumatol 2024 · checked

Haemophilia (2)

Males with hemophilia worldwide, expected number1,125,000World Federation of Hemophilia, WFH Guidelines for the Management of Hemophilia, 3rd edition (Haemophilia 2020), chapter 1 · checked Hemophilia prevalence worldwide from World Federation of Hemophilia survey data, 20233.75 per 100,000PLOS Glob Public Health 2026, Regional variations and trends in hemophilia prevalence (PubMed 41811852) · checked

Heart failure (1)

People with heart failure worldwidemore than 64 millionSavarese et al., Global burden of heart failure: a comprehensive and updated review of epidemiology, Cardiovasc Res 2023 · checked

Hepatitis B (1)

People living with chronic hepatitis B infection worldwide in 2024240 millionWHO fact sheet, Hepatitis B (28 July 2026) · checked

Hepatitis C (1)

People living with chronic hepatitis C virus infection worldwide47 millionWHO fact sheet, Hepatitis C (28 July 2026) · checked

High blood pressure (1)

Adults with hypertension worldwide, 20241.4 billionWHO fact sheet, Hypertension · checked

HIV (1)

People living with HIV worldwide in 202541.0 millionUNAIDS, Global HIV and AIDS statistics fact sheet (2026, data for 2025) · checked

Huntington's disease (2)

Huntington's disease among people of European ancestry3 to 7 per 100,000NIH MedlinePlus Genetics, Huntington disease (Frequency) · checked Pooled prevalence of Huntington's disease, studies 2010 to 20224.88 per 100,000Movement Disorders 2022, Prevalence and Incidence of Huntington's Disease: An Updated Systematic Review and Meta-Analysis · checked

Hypothyroidism (1)

Share of people in Europe with hypothyroidism, diagnosed and undiagnosed3.05%Journal of Clinical Endocrinology & Metabolism 2014, The incidence and prevalence of thyroid dysfunction in Europe: a meta-analysis · checked

IgA nephropathy (1)

Point prevalence of IgA nephropathy, all ages, 10 European countries2.53 per 10 000Nephrol Dial Transplant 2023, The incidence and prevalence of IgA nephropathy in Europe (PubMed 37156519) · checked

Infertility (1)

Share of the adult population experiencing infertility, worldwide17.5%WHO news release, 1 in 6 people globally affected by infertility · checked

Iron deficiency anaemia (2)

People with anaemia due to dietary iron deficiency worldwide, 2021444 million ... 825 millionGBD 2021 Anaemia Collaborators, Prevalence, years lived with disability, and trends in anaemia burden by severity and cause, 1990-2021, Lancet Haematol 2023 · checked Global prevalence of dietary iron deficiency (GBD 2021)16.7%Lee et al. (GBD 2021 Dietary Iron Deficiency Collaborators), Global, regional and national burden of dietary iron deficiency from 1990 to 2021, Nat Med 2025 · checked

Irritable bowel syndrome (2)

Pooled global prevalence of irritable bowel syndrome in adults11.2%Lovell and Ford, Global prevalence of and risk factors for IBS: a meta-analysis, Clin Gastroenterol Hepatol 2012 · checked Adults meeting Rome IV criteria for irritable bowel syndrome, Rome Foundation internet surveys4.1%Gastroenterology 2021, Worldwide Prevalence and Burden of Functional Gastrointestinal Disorders, Results of Rome Foundation Global Study · checked

Kidney stones (1)

US adults (20 and over) with a history of kidney stones, NHANES 2015-201610.1%Chewcharat and Curhan, Trends in the prevalence of kidney stones in the United States from 2007 to 2016, Urolithiasis 2021 · checked

Leukaemia (1)

People alive within 5 years of a leukaemia diagnosis, worldwide, 20241 488 016IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Long COVID (1)

Individuals worldwide estimated to have long COVIDAt least 65 millionDavis et al., Long COVID: major findings, mechanisms and recommendations, Nat Rev Microbiol 2023 · checked

Lung cancer (1)

People alive within 5 years of a lung cancer diagnosis, worldwide, 20243 568 718IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Lupus (1)

People living with systemic lupus erythematosus, worldwide3.41 millionAnnals of the Rheumatic Diseases 2023, Global epidemiology of systemic lupus erythematosus (Tian et al.) · checked

Lyme disease (1)

Global seroprevalence of Borrelia burgdorferi antibodies14.5%BMJ Global Health 2022, Global seroprevalence and sociodemographic characteristics of Borrelia burgdorferi sensu lato in human populations: a systematic review and meta-analysis · checked

Lymphoma (3)

People alive within 5 years of a Hodgkin lymphoma diagnosis, worldwide, 2024295 417IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked People alive within 5 years of a lymphoma diagnosis (Hodgkin and non-Hodgkin together), worldwide, 2024295 417 ... 1 721 285IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked People alive within 5 years of a non-Hodgkin lymphoma diagnosis, worldwide, 20241 721 285IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Macular degeneration (1)

People with age-related macular degeneration worldwide, projected for 2020196 millionWong et al., Global prevalence of age-related macular degeneration and disease burden projection for 2020 and 2040, Lancet Glob Health 2014 · checked

ME/CFS (1)

Prevalence of chronic fatigue syndrome/ME (CDC-1994 case definition)0.89%Lim et al., Systematic review and meta-analysis of the prevalence of CFS/ME, J Transl Med 2020 · checked

Melanoma (1)

People alive within 5 years of a melanoma of the skin diagnosis, worldwide, 20241 309 107IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Menopause (2)

Menopausal women worldwide, projected for 20301.2 billionNamazi et al., Social Determinants of Health in Menopause: An Integrative Review, Int J Womens Health 2019 · checked Women aged 50 and over as a share of all women and girls worldwide, 202126%WHO fact sheet, Menopause · checked

Migraine (1)

Prevalent cases of migraine worldwide, 20211.158 billionThe global and regional burden and trends of migraine from 1990 to 2021: Global Burden of Disease Study 2021 · checked

Multiple myeloma (1)

People alive within 5 years of a multiple myeloma diagnosis, worldwide, 2024554 606IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Multiple sclerosis (1)

People living with multiple sclerosis, worldwide2.8 millionMultiple Sclerosis Journal 2020, Rising prevalence of multiple sclerosis worldwide: Insights from the Atlas of MS, third edition · checked

Myasthenia gravis (1)

Pooled prevalence of myasthenia gravis12.4 people ... per 100,000 populationSalari et al., Global prevalence of myasthenia gravis and the effectiveness of common drugs in its treatment: a systematic review and meta-analysis, J Transl Med 2021 · checked

Narcolepsy (1)

Range of published narcolepsy prevalence estimatesfrom 1.05 to 79.40 per 100,000 populationWang et al., Heterogeneity in Estimates of Incidence and Prevalence of Narcolepsy: A Systematic Review and Meta-Regression Analysis, Neuroepidemiology 2022 · checked

Obesity (1)

People living with obesity, worldwide1.1 billionWHO fact sheet, Obesity and overweight · checked

OCD (1)

Current prevalence of obsessive-compulsive disorder in adults, pooled worldwide1.1%Fawcett, Power and Fawcett, Women Are at Greater Risk of OCD Than Men: A Meta-Analytic Review of OCD Prevalence Worldwide, J Clin Psychiatry 2020 · checked

Osteoarthritis (1)

People living with osteoarthritis, worldwideabout 528 millionWHO fact sheet, Osteoarthritis · checked

Osteoporosis (1)

Pooled prevalence of osteoporosis across 86 studies, ages 15 to 10518.3Salari et al., The global prevalence of osteoporosis in the world: a comprehensive systematic review and meta-analysis, J Orthop Surg Res 2021 · checked

Ovarian cancer (1)

People alive within 5 years of a ovarian cancer diagnosis, worldwide, 2024902 175IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Pancreatic cancer (1)

People alive within 5 years of a pancreatic cancer diagnosis, worldwide, 2024511 868IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Parkinson's disease (1)

People with Parkinson disease, worldwideover 8.5 millionWHO fact sheet, Parkinson disease · checked

PCOS (2)

Women aged 15 to 49 living with polycystic ovary syndrome worldwide, 202165.77 millionFrontiers in Public Health 2025, Global burden of polycystic ovary syndrome among women of childbearing age, 1990-2021 (GBD 2021) · checked Reproductive-aged women with PCOS worldwide10–13%WHO fact sheet, Polycystic ovary syndrome · checked

POTS (2)

Prevalence of postural tachycardia syndrome (POTS) across four published reportsapproximately 0.2%Sheldon et al., 2015 Heart Rhythm Society expert consensus statement on POTS, IST and vasovagal syncope, Heart Rhythm 2015 · checked Share of the US population estimated to have postural orthostatic tachycardia syndrome (POTS)0.1% to 1%Chung and Raj, Postural Orthostatic Tachycardia Syndrome (POTS): A Review, JAMA 2026 · checked

Preeclampsia (1)

Women who give birth affected by pre-eclampsia, worldwide3-8%WHO fact sheet, Pre-eclampsia · checked

Prostate cancer (1)

Men alive within 5 years of a prostate cancer diagnosis, worldwide, 20245 180 908IARC Global Cancer Observatory, GLOBOCAN 2024 World fact sheet, table Incidence, Mortality and Prevalence by cancer site · checked

Psoriasis (2)

People living with psoriasis worldwide, 2021 (GBD 2021)43 millionJournal of Investigative Dermatology 2026, Global Burden of Psoriasis from 1990 to 2021 and Potential Factors: A Systematic Analysis (GBD 2021) · checked People affected by psoriasis, worldwideapproximately 100 millionWHO news release, WHO publishes new report on psoriasis · checked

Psoriatic arthritis (1)

Prevalence of psoriatic arthritis among adults112 per 100 000 adultsLembke et al., The worldwide prevalence of psoriatic arthritis: a systematic review and meta-analysis, Rheumatology (Oxford) 2024 · checked

PTSD (2)

Lifetime prevalence of PTSD in adults across the WHO World Mental Health Surveys3.9%Koenen et al., Posttraumatic stress disorder in the World Mental Health Surveys, Psychol Med 2017 · checked Share of the world population that has had PTSD at some stage in their lives (WHO)3.9%World Health Organization fact sheet, Post-traumatic stress disorder (11 September 2026) · checked

Pulmonary fibrosis (2)

People with interstitial lung disease and pulmonary sarcoidosis worldwide, 2021 (GBD category)4306627.72Zhang et al., Global, regional and national burden of interstitial lung disease and pulmonary sarcoidosis, 1990-2021 and projection to 2040, Front Med 2025 · checked Pooled global prevalence of idiopathic pulmonary fibrosis (IPF)17.7Golchin et al., Incidence and prevalence of idiopathic pulmonary fibrosis: a systematic literature review and meta-analysis, BMC Pulm Med 2025 · checked

Rheumatoid arthritis (1)

People living with rheumatoid arthritis, worldwide18 millionWHO fact sheet, Rheumatoid arthritis · checked

Sarcoidosis (2)

Prevalence of sarcoidosis, Sweden, 2013 (two or more sarcoidosis-coded visits)160 per 100 000Arkema et al., Sarcoidosis incidence and prevalence: a nationwide register-based assessment in Sweden, Eur Respir J 2016 · checked Adults with sarcoidosis in England, 2023230 per 100,000Lancet Regional Health Europe 2025, Incidence, prevalence, and mortality of sarcoidosis in England: a population-based study · checked

Schizophrenia (1)

People living with schizophrenia, worldwide27 millionWHO fact sheet, Schizophrenia (11 September 2026) · checked

Sickle cell disease (2)

Americans living with sickle cell disease100,000NIH MedlinePlus Genetics, Sickle cell disease (Frequency) · checked People living with sickle-cell disease, worldwide7.74 millionWHO fact sheet, Sickle-cell disease · checked

Sjögren's syndrome (2)

Prevalence of Sjögren's syndrome across systematic reviews (umbrella review)60-70 per 100 000Rheumatology Advances in Practice 2024, Prevalence, incidence, and mortality of Raynaud's phenomenon, Sjögren's syndrome and scleroderma: an umbrella review of systematic reviews · checked Pooled prevalence of primary Sjögren's syndrome60.82 cases per 100 000 inhabitantsQin et al., Epidemiology of primary Sjögren's syndrome: a systematic review and meta-analysis, Ann Rheum Dis 2015 · checked

Sleep apnea (1)

Adults aged 30 to 69 with mild to severe obstructive sleep apnoea, worldwide936 millionLancet Respiratory Medicine 2019, Estimation of the global prevalence and burden of obstructive sleep apnoea (Benjafield et al.) · checked

Stroke (1)

Stroke cases worldwide, 202193.8 millionWHO fact sheet, Stroke · checked

Systemic sclerosis (scleroderma) (1)

Systemic sclerosis prevalence across published studies worldwide (range)0.9 to 37.9 per 100,000Best Pract Res Clin Rheumatol 2026, Systemic sclerosis: a comprehensive systematic review of global epidemiology (PubMed 42185138) · checked

Thyroid cancer (1)

People with thyroid cancer worldwide, 2021 (GBD prevalent cases)2 millionZhang et al., Epidemiological study of thyroid cancer at global, regional, and national levels from 1990 to 2021 (GBD 2021), Front Endocrinol 2025 · checked

Tinnitus (1)

Adults living with any tinnitus worldwidemore than 740 million adultsJarach et al., Global Prevalence and Incidence of Tinnitus: A Systematic Review and Meta-analysis, JAMA Neurol 2022 · checked

Type 1 diabetes (1)

Individuals worldwide with type 1 diabetes, 2021about 8·4 millionGregory et al., Global incidence, prevalence, and mortality of type 1 diabetes in 2021 with projection to 2040, Lancet Diabetes Endocrinol 2022 · checked

Type 2 diabetes (2)

Share of diabetes cases that are type 2, worldwide, 202196·0%GBD 2021 Diabetes Collaborators, Lancet 2023 · checked People living with type 2 diabetes worldwide, 2021 (diabetes cases times the type 2 share, both from GBD 2021)529 million ... 96·0%GBD 2021 Diabetes Collaborators, Global, regional, and national burden of diabetes from 1990 to 2021, Lancet 2023 · checked

Ulcerative colitis (3)

People living with inflammatory bowel disease (Crohn's disease and ulcerative colitis together) worldwide, 20176·8 millionLancet Gastroenterology & Hepatology 2020, The global, regional, and national burden of inflammatory bowel disease in 195 countries and territories, 1990-2017 (GBD 2017) · checked People living with inflammatory bowel disease (Crohn's and ulcerative colitis together) worldwide, 20213.83 millionAmerican Journal of Gastroenterology 2025, Disproportionately Increasing Incidence of Inflammatory Bowel Disease in Female Patients and the Elderly: An Update Analysis from the Global Burden of Disease Study 2021 · checked Highest reported national prevalence of ulcerative colitis (Norway)505 per 100 000Ng et al., Worldwide incidence and prevalence of inflammatory bowel disease in the 21st century, Lancet 2017 · checked

Vitiligo (1)

People with physician-diagnosed vitiligo, general population worldwide (lifetime prevalence 0.36%)28·5 millionSystematic review and modelling study estimating the burden of vitiligo (PubMed 38552651) · checked