TUESDAY, Nov. 9 (HealthDay News) -- Few teenage girls and young
women are getting the human papillomavirus vaccine (HPV), and many
of those who start the regimen fail to take all three doses, new
Although studies have shown that the HPV vaccine is safe and
effective against several strains of the sexually transmitted
virus, just one-third of teens and young women who start the
three-dose series actually finish, and almost three-quarters don't
start it at all, according to research being presented this week at
the American Association of Cancer Research annual meeting in
"Women who are eligible for this vaccine and could potentially benefit aren't getting it at rates to maximally prevent cervical cancer," said study author J. Kathleen Tracy, an assistant professor of epidemiology and public health at the University of Maryland School of Medicine in Baltimore.
"This highlights the need for public health promotions and practice patterns to encourage vaccine uptake or at least discussion of the pros and cons," Tracy said.
Tracy has initiated a study to see if text messages will prompt
women aged 18 to 26 to keep their follow-up appointments for
subsequent doses of the vaccine.
According to background information in the abstract, about 30
percent of sexually active 14- to 19-year-olds are infected with
HPV at any one time. Over time, persistent infection can lead to
Two HPV vaccines are marketed in the United States. Gardasil,
approved in 2006 for girls aged 9 and up, protects against four
types of HPV, two of which cause about 70 percent of cervical
Cervarix, which covers the two strains of the virus responsible
for most cases of cervical cancer, was approved in 2009.
The U.S. Centers for Disease Control and Prevention recommends
that 11- and 12-year-old girls be targeted for the vaccine as most
in this age group are not yet having sex and would therefore not
have been exposed to HPV yet.
A 2008 survey, conducted before Cervarix was approved, found
that only about half of American mothers intended to have daughters
younger than 13 vaccinated against human papillomavirus (HPV),
despite government guidelines suggesting the opposite.
These authors looked at medical records on 9,658 girls and women
aged 9 through 26 who were seen at the University of Maryland
Medical Center between August 2006 and August 2010.
Only 27.3 percent of them opted to start the vaccine.
And of these, 39.1 percent completed just one dose, 30.1 percent
got two doses and 30.7 percent finished the series.
Blacks were less likely than white women to get all three doses,
and women aged 18 through 26 were less likely than younger girls to
complete the series.
Dr. Mark Wakabayashi, chief of gynecologic oncology at City of
Hope Cancer Center in Duarte, Calif., thinks suspicions about
vaccines in general, including a lingering concern that childhood
vaccinations can cause autism, may cause some reluctance. Those
fears about autism are generally considered to be unfounded.
The stigma surrounding sexually transmitted diseases may also be
a deterrent. "There are these connotations with sexually
transmitted diseases, so I think a lot of parents feel that, when
you're talking about minors, everybody else should have the vaccine
except their own child," said Wakabayashi, who recommends the
vaccine to his patients.
Tracy speculated that women aged 18 to 26 may be caught up in
life's transitions at that point, like leaving home and going to
college. For many young women, this is the first time they are
making their own medical decisions.
As for the younger age group, parents also get busy or may be
less enthusiastic about a second dose if there was a side effect,
such as pain at the injection site or fainting, after the first
shot, she speculated.
Recent research from the University of Minnesota School of
Public Health, which was published in the journal
Health Affairs, also found that ongoing news reports regarding mandatory vaccination of middle-school students diminished support for the policy.
U.S. Centers for
Disease Control and Prevention has more on HPV and on HPV
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
Copyright © EBSCO Publishing. All rights reserved.