Ovarian Cancer Canada

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CDC’s Cervical Cancer Study (US Centers for Disease Control)

Source: National Cancer Institute


Cervical cancer is most often caused by a genital human papillomavirus (HPV) infection. HPV infection is common and often goes away on its own. Persistent HPV infections, however, can cause changes to cervical cells that sometimes turn into cervical cancer if not treated. Each year in the United States, about 12,000 women are diagnosed with cervical cancer, and about 4,000 die of the disease.

Two tests can help prevent cervical cancer: the Pap test and the HPV test. The Pap test looks for cell changes on the cervix that may become cancer if they are not treated appropriately. The HPV test looks for the types of HPV that are most likely to cause cancer in cervical cells.

Current guidelines [PDF-62KB] recommend that all women should have a Pap test every three years beginning at age 21. Women aged 30 to 65 years may choose instead to get both a Pap test and an HPV test at the same time every five years. This is called co-testing. 

Even though screening every three or five years is recommended, many doctors still screen their patients for cervical cancer every year. As part of CDC’s Cervical Cancer (Cx3) Study, we surveyed a sample of both health care providers and patients at Federally Qualified Health Centers during the time period of 2009 and 2010 about their practices, beliefs, and barriers to using the co-test and extending cervical cancer screening intervals for women between 30 and 60 years old.


  • Only 39% of providers reported regular use of the co-test, and 25% would recommend a guideline-consistent interval for women with normal co-test results.
  • Provider barriers to extending screening intervals included concerns about patients not returning every year for other screening tests (77%), perceived concerns by patients about missing cancer (62%), and liability (52%).
  • Patient misunderstandings about the Pap test were common; more than half of patients believed a Pap test could find vaginal, yeast, and sexually transmitted infections.
  • The majority of patients (57%) indicated that they would not wait three years to be screened, even if it was recommended by their provider; this is primarily due to low levels of knowledge about Pap testing.
  • Education for both patients and providers about the possible harms of getting screened too frequently and false positives may be needed to balance barriers to extending screening intervals.


This entry was posted on April 1, 2014 by in Resources and tagged , , .

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