KIDS
March 22, 2016

Homicidal Neighborhoods

Certain physical changes to violent areas can improve safety and could reduce teen homicides.

Homicide is one of three leading causes of death for adolescents in the United States, along with accidents and suicide. Nearly 4800 teens are murdered each year, according to the Centers for Disease Control.

The risk of death by homicide is highest in cities and among African-American teens. When researchers and policymakers look for ways to reduce this terrible statistic, they seek risk factors that can be changed. Some programs target poverty and inadequate education, two factors believed to contribute to increased risk of violence among individuals.

What is needed are interventions that are affordable and immediate and more likely to save young lives sooner.

Other programs are designed to help the mental and behavioral health of adolescents who might be at higher risk of violent behavior by providing treatments to reduce impulsivity, delinquency and substance use.

There are also public health and education efforts in schools and communities designed to address these sources of violence in society. But these programs are expensive and difficult to sustain over long periods of time. It can take years to determine their impact since such programs, and the people using them, need time to develop. What is needed are interventions that are affordable and immediate and more likely to save lives sooner.

Recently, researchers studied whether changing the physical environment — the immediate neighborhood — might reduce teen deaths.

The Difference A Safer Environment Can Make

Youth homicides often take place in rundown urban areas. Since public health officials can potentially change public spaces, a group of researchers wondered if making the environment safer could help reduce the risk of deadly attacks.

The researchers looked for low-cost improvements in outdoor spaces that would discourage violence, such as improving green space, adding lighting and cleaning up trash.

They compared the neighborhoods where 143 teens, ages 13 to 20, had been killed outdoors, with those of 155 other teens who were outdoors at roughly the same time as one of the teens who was killed, but who were not victims of violence. These teenagers served as the control group. Using panoramic photographs of street corners near homicides, researchers compared them to photos of street corners in neighborhoods where the unharmed, control teens lived.

Stop Signs, Quiet Streets, Crosswalks and Shrubbery

What they found is that when neighborhoods had streets that were adequately lit, had illuminated walk signs, painted crosswalks, public transportation, parks and maintained vacant lots, there was a lower incidence of homicide.

Interestingly, stop signs were associated with a higher risk of homicides. This may be because stop signs are used in less-trafficked and therefore more risky areas, they suggest.

Shrubbery was also associated with increased crime. It seemed to obscure visibility, offer a place to hide and provide a potential site for crime, according to the researchers.

When neighborhoods are well maintained and streets are busy, there is more community outdoor activity, more cohesion among residents and more local investment in maintaining the neighborhood. These can all reduce street violence, and all are within the power of public officials.

Stop signs and shrubbery were associated with a higher risk of homicides.

Urban teens are challenged to find safe routes to and from school and safe places for outdoor sports and activities.

Relatively low cost investments in urban community environments could play a significant role in decreasing the opportunities for violent crimes among youth and adults, the researchers suggest, though additional study is needed. The researchers advocate identifying those features of the urban landscape that could be easily modified to improve community interactions and reduce youth violence in urban settings.

The study is published in JAMA Pediatrics.

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