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JAMA Network


Cannabis use among older adults

A cross-sectional study found that more than one-third of veterans aged 65-84 who used cannabis in the past 30 days had a cannabis use disorder. Routine health screening for cannabis use is necessary to identify older adults with cannabis use. Frequent and inhaled cannabis use was associated with higher odds of any cannabis use disorder.

SourceJAMA Network·JournalJAMA Network Open·DateMay 14, 2025

Estimates of illicit opioid use in the U.S.

A national survey found that 11.0% of adults reported using illicit opioids within the past year, with even higher rates of fentanyl use, indicating a pressing need for improved data collection efforts to inform policy and intervention strategies.

SourceJAMA Network·JournalJAMA Health Forum·DateMay 9, 2025

Depression and heart failure in US veterans

A cohort study of US veterans found that depression is associated with a higher hazard of incident heart failure after controlling for demographic and cardiovascular risk factors. Depression remains consistent as a risk factor even in low-risk cohorts.

SourceJAMA Network·JournalJAMA Network Open·DateMay 8, 2025

Depressive symptoms among U.S. adults

The COVID-19 pandemic led to a substantial increase in depressive symptoms among US adults, with younger individuals being disproportionately affected. Worsening mental health trends were observed across the population.

SourceJAMA Network·JournalJAMA Internal Medicine·DateMay 5, 2025

Prenatal cannabis use and neonatal outcomes

A recent study published in JAMA Pediatrics found that prenatal cannabis use is associated with an increased risk of preterm birth and low birth weight. The research also suggests a potential link between cannabis use during pregnancy and smaller-than-average newborns.

SourceJAMA Network·JournalJAMA Pediatrics·DateMay 5, 2025

Postpartum care differences in LGBTQ+ and non-LGBTQ+ individuals

A recent study found that LGBTQ+ individuals receive lower-quality care in the postpartum period, with increased use of emergency departments and specialist care. Despite comparable access to pregnancy-related care, LGBTQ+ people experience significant inequities in unmet healthcare needs and cost-related medication nonadherence.

SourceJAMA Network·JournalJAMA Health Forum·DateMay 2, 2025

Nicotine pouch and e-cigarette use and co-use among U.S. youths

A cross-sectional study finds a doubling in nicotine pouch past-30-day use and an increase in pouch plus e-cigarette dual use, leading to decreased exclusive e-cigarette use among US 10th and 12th graders. Prioritizing surveillance, regulation, and prevention strategies is crucial for addressing pediatric nicotine pouch use.

SourceJAMA Network·JournalJAMA Network Open·DateApr 30, 2025

Herpes zoster vaccination and dementia occurrence

Researchers investigated the potential link between herpes zoster vaccination and dementia. They found that vaccination may be associated with a lower risk of developing dementia in older adults. The study's findings suggest a possible causal relationship between vaccination and reduced dementia occurrence.

SourceJAMA Network·JournalJAMA·DateApr 23, 2025

Varenicline for youth nicotine vaping cessation

A 12-week randomized clinical trial shows varenicline combined with behavioral counseling effectively increased vaping abstinence in youth who vape nicotine but do not regularly smoke tobacco. This study provides hope for a novel treatment approach to help combat the growing youth vaping epidemic.

SourceJAMA Network·JournalJAMA·DateApr 23, 2025