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JAMA Network


Guns and perceptions of safety among US women

A survey study found that US women who own guns perceive themselves as safer than those who do not, with 41% believing owning a gun would increase their safety. The study suggests a need for targeted gun violence reduction interventions considering different perceptions of safety related to gun exposure.

SourceJAMA Network·JournalJAMA Network Open·DateJul 31, 2026

Trends and Factors in Nursing Home Closures

US nursing homes have seen a significant increase in closures between 1985 and 2025, with changes in ownership and capacity reconfiguration being more common than permanent facility closure. The study highlights the need for policy and oversight considerations that take into account ownership transitions and capacity changes.

SourceJAMA Network·JournalJAMA Health Forum·DateJul 31, 2026

What are nicotine pouches?

Nicotine pouches are a new form of nicotine delivery that has sparked concerns over safety and efficacy. Researchers warn of potential harms, side effects, and accidental use, as well as the risk of dependence on these products.

SourceJAMA Network·JournalJAMA·DateJul 30, 2026

Cancer medicine approvals in the US

A cross-sectional study examines trends in US FDA-approved cancer medicines for adult solid tumors between 2006 and 2025. The analysis reveals significant increases in approvals, particularly for original indication approvals.

SourceJAMA Network·JournalJAMA·DateJul 30, 2026

Circulating tumor DNA in head and neck cancer

Liquid biopsy targeting viral ctDNA holds promise as a diagnostic and surveillance tool for head and neck cancer. The study aims to monitor treatment response and assess minimal residual disease (MRD) to adapt treatment via precision oncology.

SourceJAMA Network·JournalJAMA Otolaryngology–Head & Neck Surgery·DateJul 30, 2026

Global burden of elevated LDL-C

High LDL-C led to 3.6 million deaths and 90.7 million disability-adjusted life years in 2023, despite declining mortality rates. The absolute burden increased due to population growth and aging, with regional disparities emerging.

SourceJAMA Network·JournalJAMA·DateJul 29, 2026

Financial stressors and suicide

A case-control study found that individuals with delinquent mortgage payments, repossessions, late credit card payments, and lower credit scores had a significantly increased risk of suicide. The study's findings suggest that financial stressors play a critical role in the development of suicidal thoughts and behaviors.

SourceJAMA Network·JournalJAMA Network Open·DateJul 27, 2026

Trends in alcohol consumption during pregnancy in the US

Researchers found a significant increase in binge drinking and heavy drinking among pregnant women in the US between 2011 and 2024. The study highlights the importance of addressing alcohol consumption during pregnancy, particularly among vulnerable populations such as those with tobacco use or mental health concerns.

SourceJAMA Network·JournalJAMA·DateJul 27, 2026

Gefurulimab and generalized myasthenia gravis

A phase 3 randomized controlled trial found that gefurulimab significantly improved clinical benefits for adults with generalized myasthenia gravis, resulting in meaningful improvements in daily living and muscle strength scores. Most side effects were mild and similar between treatment and control groups.

SourceJAMA Network·JournalJAMA Neurology·DateJul 27, 2026

Drinking water contaminant exposures and risk of uterine cancer

A cohort study of California educators found associations between trihalomethanes in drinking water and increased uterine cancer risk, including with endometrioid tumors. Further investigation is warranted to understand the role of drinking water contaminants as modifiable risk factors for this common gynecologic cancer.

SourceJAMA Network·JournalJAMA Network Open·DateJul 22, 2026

Spousal dementia exposure and risk of dementia

A cohort study in Taiwan found that spouses of individuals with dementia had a significantly higher risk of developing dementia compared to unexposed spouses. The association varied depending on the family context and socioeconomic status, highlighting the importance of considering household factors in dementia risk assessment.

SourceJAMA Network·JournalJAMA Network Open·DateJul 20, 2026