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Rising melanoma rates among adolescents, children are subject of new study

Date:
April 9, 2013
Source:
Washington University in St. Louis
Summary:
A new study looks at the increase of melanoma, a form of skin cancer, in children and adolescents and what those trends might be telling us.

With springtime temperatures and warm weather approaching, the inclination to spend time outdoors is a strong one – especially for children who have been cooped up all winter.

But parents should be vigilant about sunscreen. And teenage girls might want to rethink springtime tanning and tanning beds. A new study out of the Brown School at Washington University in St. Louis looks at the increase of melanoma, a form of skin cancer, in children and adolescents and what those trends might be telling us.

“Melanoma,” said Kimberly J. Johnson, PhD, assistant professor at the Brown School and senior author of the study, “is rare in children between the ages of 0 and 19 years with just 400-500 individuals diagnosed annually in the U.S.”

“Similar to what we’re seeing in adults, rates have increased over the past several decades,” she said. “Although the exact reasons for this trend are unclear, parents should be vigilant about helping children and adolescents reduce their chance of developing melanoma by practicing sun-protective behaviors and avoiding tanning beds.”

The study, “Incidence of Childhood and Adolescent Melanoma in the United States: 1973-2009,” will be published online April 15 in the journal Pediatrics. The research is being presented during a poster session in Washington, D.C., on Tuesday, April 9, at the annual meeting of the American Association of Cancer Research.

Lead author Jeannette R. Wong, MPH, of the Radiation Epidemiology Branch of the Division of Cancer Epidemiology and Genetics of the National Cancer Institute, started the study as a student in the Master of Public Health Program at the Brown School. In addition to Wong and Johnson, co-authors include Jenine K. Harris, PhD, assistant professor at the Brown School, and Carlos Rodriguez-Galindo, MD, of Harvard University.

“The study will help put melanoma on the radar of pediatricians,” Johnson said.

A large percentage of a person’s lifetime exposure to UV radiation occurs during childhood. Children and adolescents spend more time outdoors, especially in the summer months, and may receive three times more UV rays than adults. In addition, an individual’s childhood UV exposure is a risk factor for melanoma later in life.

Johnson and the researchers used Surveillance, Epidemiology, and End Results data from nine U.S. cancer registries and found that the incidence of childhood and adolescent melanoma has been significantly increasing in the United States from 1973-2009 — an average of 2 percent per year.

Among the risk factors for melanoma are fair skin, light-colored hair and eyes, family history, prevalence of such things as birthmarks, moles or blemishes; and an increased exposure to ultraviolet radiation.

“The true impact of this research will be to increase awareness of the dangers of too much exposure to the sun and artificial tanning,” Johnson said.


Story Source:

The above story is based on materials provided by Washington University in St. Louis. Note: Materials may be edited for content and length.


Cite This Page:

Washington University in St. Louis. "Rising melanoma rates among adolescents, children are subject of new study." ScienceDaily. ScienceDaily, 9 April 2013. <www.sciencedaily.com/releases/2013/04/130408152739.htm>.
Washington University in St. Louis. (2013, April 9). Rising melanoma rates among adolescents, children are subject of new study. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2013/04/130408152739.htm
Washington University in St. Louis. "Rising melanoma rates among adolescents, children are subject of new study." ScienceDaily. www.sciencedaily.com/releases/2013/04/130408152739.htm (accessed July 31, 2014).

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