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PUBLIC RELEASE DATE:
30-Oct-2013

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Contact: Molly Dannenmaier
mjdannen@utmb.edu
409-772-8790
University of Texas Medical Branch at Galveston

HPV vaccination rates alarmingly low among young adult women in South

Rates vary by region; indicate need for publicly funded vaccine programs

GALVESTON, Texas -- Initiation and completion rates for the human papillomavirus vaccine series are significantly lower in the South than any other geographic region, according to a new study from researchers at the University of Texas Medical Branch at Galveston. The new findings are especially disconcerting because cervical cancer which is caused almost exclusively by HPV is more prevalent in the South than in any other region. Further, although vaccination rates have risen since 2008, the findings underscore the need for increased physician recommendation and vaccine assistance programs.

The study, published online in the journal Vaccine, examined the association between geographic region and HPV vaccine uptake and completion rates among women ages18-26 in 12 states. It is the first study of its kind to include initiation and completion rates and assess data across multiple years.

The researchers used data collected between 2008 and 2010 from the Behavioral Risk Factor Surveillance System, the world's largest ongoing health survey, from 12 states representing four distinct regions: the Northeast (Connecticut, Massachusetts, Pennsylvania, Rhode Island); the Midwest (Kansas, Minnesota, Nebraska); the West (Wyoming); and the South (Delaware, Oklahoma, Texas, West Virginia).

The researchers found:

"If a lower rate of HPV vaccine uptake in the South persists, it could contribute to the national burden of cervical cancer in the long run," says Dr. Abbey Berenson, professor in the department of obstetrics and gynecology and director of UTMB's Center for Interdisciplinary Research in Women's Health and contributor to this study.

"We need more physician referrals, public financing for vaccine programs and educational interventions to improve HPV vaccine uptake if we want to lower rates of HPV-related diseases," said Berenson.

An estimated 79 million Americans are currently infected with HPV, and most sexually active persons will contract at least one type of HPV at some point in their lives. The virus is responsible for nearly all cases of cervical cancer, which each year kills more than 4,000 American women half of whom are estimated to live in the South. HPV is also associated with genital warts and vulvar, vaginal, penile, anal and oropharyngeal cancers.

The researchers believe regional disparities could be due to a confluence of several factors, including differences in income, education and insurance coverage. "We need to examine whether regional or state level policies contribute to these variations, especially if these policies are hindering patients from learning about or receiving the vaccine," says lead author Dr. Mahbubur Rahman, associate professor of obstetrics and gynecology at UTMB.

This study adds to previous literature and builds on a growing body of knowledge at UTMB regarding HPV uptake. Earlier studies led by Berenson have focused on completion rates among females ages 9-27 and differences in parents' willingness to vaccinate their sons and daughters.

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Dr. Tabassum H. Laz, research scientist at CIRWH, also contributed to this study. Funding support came from the Eunice Kennedy Shriver National Institute of Child Health and Human Development.



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