William Copeland

Aug 29, 2024 | jamanetwork.com | William Copeland |Ryan Keen |Ran Barzilay

Key PointsQuestion  Does vulnerability to negative life events vary across 5 developmental periods from preschool to adulthood? Findings  In this cohort study of 3258 participants from 3 community-representative samples with harmonized assessments, associations of negative life events with emotional symptoms were consistent and typically small to moderate in size across the 5 developmental periods.

Nov 9, 2023 | ajp.psychiatryonline.org | William Copeland |Julia Halvorson-Phelan |Ellen McGinnis |Lilly Shanahan

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Oct 18, 2023 | jamanetwork.com | Guangyu Tong |Michele M. Easter |Jeffrey Swanson |William Copeland

Key PointsQuestion  How do patterns of firearm access change from childhood to young adulthood, and how are violent experiences associated with either initiating or maintaining gun ownership or access? Findings  In this cohort study of 1260 participants in the Southeastern US, access to firearms declined from childhood to young adulthood. Most childhood violent experiences were not significantly associated with gun ownership in young adulthood.