Human papillomavirus infection in women with and without cervical cancer in Tbilisi, Georgia

Cancer Epidemiol. 2011 Oct;35(5):465-70. doi: 10.1016/j.canep.2010.12.006. Epub 2011 Feb 2.

Abstract

Background: No accurate estimates of cervical cancer incidence or mortality currently exist in Georgia. Nor are there any data on the population-based prevalence of high-risk (HR) human papillomavirus (HPV) infection, which, in the absence of good-quality screening, is known to correlate with cervical cancer incidence.

Methods: We obtained cervical cell specimens from 1309 women aged 18-59 years from the general population of Tbilisi, and also from 91 locally diagnosed invasive cervical cancers (ICC). DNA of 44 HPV types was tested for using a GP5+/6+-based PCR assay.

Results: In the general population (of whom 2% reported a previous Pap smear) HPV prevalence was 13.5% (95% CI: 11.6-15.9), being highest in women aged 25-34 years (18.7%) and falling to between 8.6% and 9.5% for all age groups above 34 years. HR HPV prevalence was 8.6% overall, being 6.8% and 38.9% among women with normal and abnormal cytology, respectively. HPV45 (1.6%) was the most common type in women with normal cytology, whereas HPV16 predominated among women with cervical abnormalities (including 7 of 10 histologically confirmed cervical intraepithelial neoplasia 2/3) and among ICC (57.6%). The next most common types in ICC in Georgia were HPV45 and 18 (13.2 and 11.0%, respectively).

Conclusions: We report a relatively high burden of HPV infection in Tbilisi, Georgia. Improving cervical cancer prevention, through screening and/or HPV vaccination, is an important public health issue in Georgia, where 70% of ICC are theoretically preventable by HPV16/18 vaccines.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • DNA, Viral / genetics
  • Female
  • Follow-Up Studies
  • Georgia / epidemiology
  • Humans
  • Incidence
  • Mass Screening
  • Middle Aged
  • Papanicolaou Test
  • Papillomaviridae / genetics
  • Papillomavirus Infections / epidemiology*
  • Papillomavirus Infections / pathology
  • Papillomavirus Infections / virology*
  • Prevalence
  • Prognosis
  • Risk Factors
  • Survival Rate
  • Uterine Cervical Dysplasia / epidemiology*
  • Uterine Cervical Dysplasia / pathology
  • Uterine Cervical Dysplasia / virology*
  • Uterine Cervical Neoplasms / epidemiology*
  • Uterine Cervical Neoplasms / pathology
  • Uterine Cervical Neoplasms / virology*
  • Vaginal Smears
  • Young Adult

Substances

  • DNA, Viral