JAMA

Blood Testing for Phosphatidylethanol

A 36-year-old man with obesity and dyslipidemia presented with elevated liver enzymes following a liver transplant to treat acute-on-chronic liver failure due to alcohol-associated hepatitis. What would you do next?

Service Animals in Health Care Settings

This JAMA Insights article reviews Americans with Disabilities Act (ADA) rules for patients, visitors, and other members of the public bringing service animals into health care settings.

A 3-Year-Old With Gingival Hemorrhage and Musculoskeletal Pain

A 3-year-old had spontaneous gingival hemorrhage and bilateral limb weakness with inability to bear weight. He had no preceding oral trauma or recent infection, took no regular medications, and had no recent use of aspirin or nonsteroidal anti-inflammatory drugs; his…

Climate Change and Mental Health

This JAMA Insights discusses the adverse effects of climate change on mental health and proposes solutions to help mitigate those effects.

Survival Benefit Associated With Participation in Clinical Trials of Anticancer Drugs – A Systematic Review and Meta-Analysis

Importance  Many cancer clinical investigators view clinical trials as offering better care for patients than routine clinical care. However, definitive evidence of clinical benefit from trial participation (hereafter referred to as the participation effect) has yet to emerge. Objective  To conduct a systematic…

Krill Oil for Knee Osteoarthritis – A Randomized Clinical Trial

Importance  Knee osteoarthritis is disabling, with few effective treatments. Preliminary evidence suggested that krill oil supplementation improved knee pain, but effects on knee osteoarthritis remain unclear. Objective  To evaluate efficacy of krill oil supplementation, compared with placebo, on knee pain in people…

Federal Trade Commission Actions on Prescription Drugs, 2000-2022

Importance  The Federal Trade Commission’s (FTC) oversight role in the pharmaceutical market is critical to the health of patients and the health care system. This study characterized the FTC’s policy on the pharmaceutical market in recent decades, identifying the types of…

Causal Inference About the Effects of Interventions From Observational Studies in Medical Journals

Importance  Many medical journals, including JAMA, restrict the use of causal language to the reporting of randomized clinical trials. Although well-conducted randomized clinical trials remain the preferred approach for answering causal questions, methods for observational studies have advanced such that causal interpretations of…

Prognostic Value of Cardiovascular Biomarkers in the Population

Importance  Identification of individuals at high risk for atherosclerotic cardiovascular disease within the population is important to inform primary prevention strategies. Objective  To evaluate the prognostic value of routinely available cardiovascular biomarkers when added to established risk factors. Design, Setting, and Participants  Individual-level…

Smoking Cessation After Initial Treatment Failure With Varenicline or Nicotine Replacement – A Randomized Clinical Trial

Importance  Most people who smoke do not quit on their initial attempt. Objective  To determine the best subsequent strategy for nonabstinence following initial treatment with varenicline or combined nicotine replacement therapy (CNRT). Design, Setting, and Participants  Using a double-blind, placebo-controlled, sequential multiple assignment…