1,953 articles
Adverse outcome pathway
An adverse outcome pathway (AOP) is a toxicology framework, introduced by EPA researchers in 2010, that links a chemical's molecular interaction to an adverse health or ecological effect.
Advocate Health
Advocate Health, also Advocate Health Care (Illinois), Atrium Health (Carolinas, Georgia, Alabama), and Aurora Health Care (Wisconsin), is the third-largest U.S. nonprofit integrated health system, formed December 2, 2022, headquartered in Charlotte, NC, with 69 hospitals across eight states and $6.27 billion in 2025 community benefit.
Aetna
Aetna: major US health insurer founded 1853 in Hartford (fire insurance roots, 1819), acquired by CVS Health for $69B in 2018; 27M+ medical members, Medicare Advantage, Medicaid, ACA, dental and behavioral health products.
Affiliated Hospital of Qingdao University
Affiliated Hospital of Qingdao University (青岛大学附属医院), founded 1898 as a German naval hospital, is a Grade 3A provincial teaching hospital of Qingdao University with five campuses, 5,000+ beds, and 6 national key clinical specialties.
Affordable Care Act
Affordable Care Act (ACA, Obamacare), P.L. 111-148, signed March 23, 2010: US health reform law with essential health benefits, Medicaid expansion, and marketplace premium tax credits; enhanced subsidies expired end of 2025, cutting enrollment from 21.8 to 19.2 million.
Age adjustment
Age adjustment is a statistical standardization method that replaces a population's age distribution with a standard one, allowing fair comparison of disease or death rates.
Age Distribution
Age distribution is the breakdown of a population by age and sex, shown as population pyramids and tracked in UN World Population Prospects; key facts include 8.2 billion people in 2024, a projected 10.3 billion peak in the mid-2080s, and rising shares of people over 65.
Age of Onset
Age of onset, also indexed as age-at-onset, is the age at which a disease first appears, used in epidemiology, psychiatry, and genetics rather than age at diagnosis.
Age-Well trial
Age-Well (Medit-Ageing, Silver Santé Study; NCT02977819): Caen, France RCT of 137 adults 65+ randomized to 18-month meditation, English training, or no intervention; no cognitive gains, but improved well-being and reduced loneliness.
Agency for Healthcare Research and Quality
Agency for Healthcare Research and Quality (AHRQ), formerly AHCPR (1989), is the HHS lead federal agency for healthcare quality, patient safety, and primary care research, known for MEPS, HCUP, TeamSTEPPS, CUSP, and PSNet, headquartered in Rockville, Maryland.
Agnes Binagwaho
Agnes Binagwaho is a Rwandan pediatrician who served as Rwanda's Minister of Health from 2011 to 2016, led its National AIDS Control Commission, and co-founded the University of Global Health Equity.
Ahmadu Bello University Teaching Hospital
Ahmadu Bello University Teaching Hospital (ABUTH), Zaria, Kaduna State, Nigeria: federal tertiary teaching hospital of Ahmadu Bello University, founded as the Institute of Health in 1968, moved to Shika in 1999, 650 beds, led by Prof. Ahmed Umadagas Hamidu.
AID-Comp trial
AID-Comp (NCT05477030), Effect of Automated Insulin Delivery on Early-stage Diabetic Complications, is a University of Milan randomized trial comparing Medtronic MiniMed 780G hybrid closed-loop with predictive low glucose suspend in 52 adults with type 1 diabetes, measuring time in range, HbA1c, and early microvascular damage markers over 26 weeks.
AIDA STEMI trial
AIDA STEMI (Abciximab Intracoronary versus intravenously Drug Application in STEMI), NCT00712101: randomized open-label trial of 2,065 STEMI patients comparing intracoronary with intravenous abciximab bolus during primary PCI; similar MACE and infarct size in both routes.
AIDS
AIDS (ISSN 0269-9370) is a monthly peer-reviewed medical journal on HIV and AIDS published by Lippincott Williams & Wilkins in London since 1987, distinct from the disease itself; ranked first in HIV research output with a 2.9 impact factor.
Ain Shams University Hospital
Ain Shams University Hospitals, Abbasiya, Cairo: Ain Shams University's teaching hospital network (مستشفيات جامعة عين شمس), founded on Demerdash Hospital (1928); about 775,000 visits, 2,300 beds, 739,048 patients and 7.46 million lab tests in FY2025/2026, now being redeveloped as Ain Shams Medical City.
Air Force Medical University
Air Force Medical University (空军军医大学, Fourth Military Medical University) is a PLA Air Force medical university in Xi'an, China, founded in 1941, a Double First-Class and former 211 Project institution with Xijing and Tangdu hospitals.
Air pollution in India
Air pollution in India: ambient and household air contamination, the country's leading death risk factor with over 2 million deaths in 2023, PM2.5 exposure of 54.1 µg/m³, and the National Clean Air Programme launched in 2019.
AIR PRESSURE trial
AIR PRESSURE trial (NCT04908917), Reducing AIR Pollution Exposure to Lower Blood PRESSURE: Wayne State University randomized double-blind sham-controlled trial of 200 Detroit adults with mild hypertension, testing 21 days of bedroom HEPA portable air cleaner use versus sham for lowering home blood pressure.
Air sampling
Air sampling is the collection of airborne particles, gases, or bioaerosols onto filters or into liquid media, so exposure concentrations can be measured against health-based limits.
AIR-CPR study
AIR-CPR study (NCT07431710): a three-year prospective observational trial at Far Eastern Memorial Hospital, Taiwan, validating a YOLO v8 AI app that reads femoral arterial waveforms to detect aortic valve compression and guide personalized chest compression repositioning during OHCA resuscitation.
Alan Reed Weil
Alan Reed Weil is an American health policy scholar and National Academy of Medicine member, editor-in-chief of Health Affairs and former executive director of NASHP.
Albany Medical College
Albany Medical College (AMC), founded 1839 in Albany, New York, is one of the oldest private US medical schools, part of Albany Med Health System, with ~145-student MD classes, LCME accreditation, and BS/MD programs with RPI, Union, and Siena.
Aleida Guevara
Aleida Guevara March, eldest daughter of Che Guevara and Aleida March, is a Cuban pediatrician, Communist Party member, and ICAP representative who defends Cuba's government and manages her father's image legacy.
Alex Azar
Alex Azar (born 1967) is an American lawyer and former Eli Lilly executive who was the 24th US Secretary of Health and Human Services, 2018-2021, under Trump, after serving as HHS general counsel and deputy secretary under Bush.
Alex H. Krist
Alex H. Krist is an American family physician and researcher at Virginia Commonwealth University who chaired the U.S. Preventive Services Task Force from 2020 to 2021.
Alfred O. Berg
Alfred O. Berg is an American family physician and prevention researcher, professor and chair of family medicine at the University of Washington, who chaired the U.S. Preventive Services Task Force.
Ali Rowhani-Rahbar
Ali Rowhani-Rahbar is an Iranian-born American epidemiologist at the University of Washington who studies firearm injury prevention and was elected to the National Academy of Medicine in 2023.
Alicia Fernandez
Alicia Fernandez is an American internist and health services researcher at UCSF who studies language barriers in care and joined the National Academy of Medicine in 2024.
All India Institute of Medical Sciences, Darbhanga (अखिल भारतीय आयुर्विज्ञान संस्थान, दरभंगा)
AIIMS Darbhanga (अखिल भारतीय आयुर्विज्ञान संस्थान, दरभंगा), Bihar's second AIIMS under PMSSY, approved 15 September 2020 at ₹1264 crore; land disputes delayed it, foundation stone laid November 2024, revised cost ₹2006.07 crore in 2026.