SAN DIEGO - Douglas J. Wiebe, PhD, assistant professor of Epidemiology at the University of Pennsylvania School of Medicine, presented portions of an ongoing study on the daily activities of youth and their risk of being violently injured this week at the 2010 American Association for the Advancement of Science meeting in San Diego.

Violent injury, the second leading cause of death among US youth, appears to be the end result of a web of factors including alcohol, weapons, and dangerous urban environments.

Using new techniques, a team led by Wiebe is investigating how the nature and whereabouts of daily activities relate to the likelihood of violent injury among youth.

Injured youth are recruited for the study during hospital treatment; uninjured controls are recruited from households across Philadelphia using random digit dialing.

Laptop-based, portable mapping technology is used to interview each youth and construct a graphic, minute-by-minute record of how, when, where, and with whom youths spent time or moved about over the 24-hour time period leading up to their injury. Each youth also reports their activities, including use of alcohol and weapons at each point throughout the same day. Characteristics of streets, buildings, and neighborhood populations are then linked to each point in their daily activities.

"The ultimate goal is to inform communities of place-based risk factors and identify opportunities to make communities safer," says Wiebe. "Simply put, where youth go throughout their day influences the opportunities they have to get hurt. The aim is to identify the most high risk places."

The researchers hope that this type of information can be used to better design and revitalize urban environments for safety.

Penn Medicine is one of the world’s leading academic medical centers, dedicated to the related missions of medical education, biomedical research, excellence in patient care, and community service. The organization consists of the University of Pennsylvania Health System and Penn’s Raymond and Ruth Perelman School of Medicine, founded in 1765 as the nation’s first medical school.

The Perelman School of Medicine is consistently among the nation's top recipients of funding from the National Institutes of Health, with $550 million awarded in the 2022 fiscal year. Home to a proud history of “firsts” in medicine, Penn Medicine teams have pioneered discoveries and innovations that have shaped modern medicine, including recent breakthroughs such as CAR T cell therapy for cancer and the mRNA technology used in COVID-19 vaccines.

The University of Pennsylvania Health System’s patient care facilities stretch from the Susquehanna River in Pennsylvania to the New Jersey shore. These include the Hospital of the University of Pennsylvania, Penn Presbyterian Medical Center, Chester County Hospital, Lancaster General Health, Penn Medicine Princeton Health, and Pennsylvania Hospital—the nation’s first hospital, founded in 1751. Additional facilities and enterprises include Good Shepherd Penn Partners, Penn Medicine at Home, Lancaster Behavioral Health Hospital, and Princeton House Behavioral Health, among others.

Penn Medicine is an $11.1 billion enterprise powered by more than 49,000 talented faculty and staff.

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