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Babies born to single mothers by choice have birth outcomes comparable to average

A UCL-led study found that babies born to single mothers by choice have similar birth outcomes to babies of partnered mothers who had conceived naturally. Single mothers by choice were also less likely to have low birth weight or be born pre-term compared to single mothers who conceived naturally.

SourceUniversity College London·JournalInternational Journal of Epidemiology·TypeObservational study·DateSep 22, 2026

Halving fertility treatment costs could more than double births, major global study shows

A landmark international study found that halving patient out-of-pocket costs for fertility treatment significantly increased births achieved through ART, with a 2.67-fold increase reported. Countries with lower cost-to-baby metrics consistently achieved higher levels of ART utilisation, highlighting the importance of affordability in ...

Birth after uterus transplant

A single-center study demonstrates uterus transplant feasibility in multidisciplinary centers, supporting its use for women with absolute uterine factor infertility. Ongoing reporting and data sharing will refine risk estimates and optimize patient counseling.

SourceJAMA Network·JournalJAMA·DateMay 1, 2026

Female reproductive cancers and the sex gap in survival

A population-level cohort study of 20 low-mortality countries found that females aged 35-60 have higher cancer mortality rates than males, despite similar treatment and diagnostic pathways. The study highlights the need for targeted action to improve the prevention, early detection, and treatment of female reproductive cancers.

SourceJAMA Network·JournalJAMA Network Open·DateMar 10, 2026

Trends in poverty and birth outcomes in the US

A recent study by JAMA Pediatrics reveals stark disparities in birth outcomes by poverty status, with low-income families facing increased risks of low birth weight. The findings underscore the importance of supporting vulnerable populations during pregnancy and birth through evidence-based antipoverty policies.

SourceJAMA Network·JournalJAMA Pediatrics·DateMar 2, 2026

Community water fluoridation and birth outcomes

A large cohort study found no association between community water fluoridation and adverse birth outcomes, providing reassurance about its safety during pregnancy. The study highlights the importance of rigorous causal designs in evaluating public health interventions.

SourceJAMA Network·JournalJAMA Network Open·DateJan 20, 2026

Air pollution exposure and birth weight

A cohort study found higher fine particulate matter (PM2.5) exposure associated with lower birth weight, particularly in early and mid-pregnancy. The study's findings suggest that understanding windows of susceptibility to environmental exposures can inform strategies for limiting exposure during critical periods.

SourceJAMA Network·JournalJAMA Network Open·DateDec 26, 2025

Saving lives, not raising birthrates, is Eastern Europe’s best hope against population decline

A new study reveals that reducing mortality through large-scale investment in public health is a more effective and ethically sound strategy than encouraging people to have more children. By focusing on lowering mortality rates, countries can slow population decline and maximize the return on investment in their existing population.

SourceInternational Institute for Applied Systems Analysis·JournalBulletin of the World Health Organization·DateDec 15, 2025

Country of birth, race, ethnicity, and prenatal depression

A cross-sectional study found that prenatal depression diagnosis and moderate to severe depression symptoms differ by maternal nativity and racial/ethnic background. Non-U.S.-born mothers tend to have better neonatal outcomes, but this association may not hold true for prenatal mental health conditions.

SourceJAMA Network·JournalJAMA Network Open·DateSep 15, 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

New study: Fewer women want to have children

A new study from Uppsala University found that 75% of women aged 24 wanted to have children, significantly lower than the 91% in 2014. The survey also revealed that 40 women stated they didn't want children due to various reasons, including uncertainty about the future and health concerns.

SourceUppsala University·JournalThe European Journal of Contraception & Reproductive Health Care·TypeSurvey·DateMar 24, 2025

Unraveling the mystery of the missing blue whale calves

Researchers propose that timing hypothesis explains the mystery of missing blue whale calves, where births occur in fall and winter, and calves are weaned before returning to feeding areas. This explanation offers alternative insight into high pregnancy rates vs. low sightings of mother-calf pairs.

SourceUniversity of Washington·JournalEndangered Species Research·TypeObservational study·DateFeb 21, 2025

Long before the L.A. fires, America’s housing crisis displaced millions

A new USC study reveals that the US is facing a shortage of 4.5 million homes due to policy missteps in the early 2000s, which led to a historic housing bubble and subsequent Great Recession. The crisis has disproportionately affected millennials and people of color, with racial and ethnic disparities in homeownership widening over time.

SourceUniversity of Southern California·JournalRSF The Russell Sage Foundation Journal of the Social Sciences·TypeData/statistical analysis·DateJan 14, 2025

Preterm births are on the rise, with ongoing racial and economic gaps

A new study analyzing over five million births found a 10.6% increase in preterm births between 2011 and 2022, with racial and socioeconomic disparities persisting. Factors like diabetes, high blood pressure, and mental health conditions became more common, while protective factors such as prenatal care and WIC participation declined.

SourceNew York University·JournalJAMA Network Open·TypeObservational study·DateSep 27, 2024

Adolescents and young adults’ sources of contraceptive information

A study reveals discrepancies between preferred and actual sources of contraceptive information among adolescents and young adults. Clinicians are the most commonly preferred source, yet they also pose the largest discrepancy between preference and use. This highlights the importance of clinicians in supporting informed contraceptive d...

SourceJAMA Network·JournalJAMA Network Open·DateSep 13, 2024