This Week in Pediatrics
Science 37 Launches Dedicated Pediatrics Department to Expand Access to Specialized Clinical Research for Children and Families
Science 37 launches its dedicated Pediatrics Department, reinforcing the company’s commitment to advancing pediatric research....
Judge blocks parts of Robert F. Kennedy Jr.'s vaccine policy changes
Children and adolescents ages 2 to 18, without other high-risk factors like immunosuppression, can receive and should be offered the vaccine if they were not immunized before, according to the guidance.
CDC Reduces US Childhood Immunization Schedule From 17 to 11 Diseases | AJMC
“All vaccines currently recommended by CDC will remain covered by insurance without cost sharing,” Mehmet Oz, MD, administrator of the Centers for Medicare & Medicaid Services, said in a statement.
Research of the Day
Social Media Use and Depression in Early Adolescence: Longitudinal Analysis
This 3-year longitudinal study followed 6,500 adolescents ages 12-15, tracking social media use patterns and mental health outcomes. High social media use (>3 hours/day) was associated with increased depression risk, though the relationship was bidirectional.
Key findings: (1) 35% increased odds of elevated depressive symptoms with high use; (2) Social comparison and cyberbullying mediated the relationship; (3) Active use (creating content) showed smaller associations than passive consumption.
Screen for problematic social media use during well visits. Counsel families on media limits, encourage active over passive use, and discuss warning signs of cyberbullying and unhealthy comparison.
Popular Beliefs
Remove ticks with a lit match or petroleum jelly
What the evidence shows: These methods can cause the tick to regurgitate into the wound, increasing disease transmission risk. Use fine-tipped tweezers to grasp the tick close to the skin and pull upward with steady pressure. Save the tick for identification if possible.
Reading to babies is pointless—they don't understand
What the evidence shows: Research consistently demonstrates that reading to infants from birth supports language development, vocabulary acquisition, and later literacy skills. Even before understanding words, babies benefit from hearing language patterns, rhythm, and the bonding experience. The AAP recommends reading aloud beginning in infancy.
Green mucus means bacterial infection requiring antibiotics
What the evidence shows: Mucus color changes naturally during viral infections and does not reliably distinguish viral from bacterial causes. Green/yellow mucus indicates immune cell activity, which occurs in both viral and bacterial infections. Antibiotics should be prescribed based on clinical criteria, not mucus color.
Behaviors
Screen Time and Executive Function in Preschoolers: A Longitudinal Analysis
This prospective cohort study followed 850 children from ages 2 to 5 years, examining the relationship between screen time exposure and executive function development. Researchers used validated parent-report measures and direct assessments of working memory, inhibitory control, and cognitive flexibility.
Children with more than 2 hours of daily screen time at age 2 showed lower scores on executive function measures at age 5. Notably, the type of screen content mattered—educational programming showed smaller associations than passive entertainment viewing. Joint parent-child viewing partially mitigated negative effects.
These findings support counseling families on the AAP recommendation of less than 1 hour per day of high-quality programming for children 2-5 years. Emphasize co-viewing and educational content when screens are used. Executive function is crucial for school readiness and later academic success.
Genetics
Polygenic Risk Scores and ADHD: Clinical Utility Analysis
Large GWAS analysis demonstrates polygenic risk scores for ADHD have limited current clinical utility for diagnosis but may help identify children at risk for severe or persistent symptoms. Environmental factors remain critically important.
Key findings: (1) Polygenic scores explain ~10% of ADHD variance; (2) Higher scores associated with earlier onset and persistence; (3) Not useful as diagnostic test—clinical evaluation remains gold standard.
Genetics is one piece of the ADHD puzzle but doesn't replace clinical assessment. Avoid overinterpreting direct-to-consumer genetic tests. Family history remains the most useful genetic 'test' for ADHD risk.