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HPV infection in HIV-positive subjects and molecular epidemiology

Purpose of the study

We aimed to examine HPV infection of the anus in a cohort of HIV-infected patients and correlate cytological findings with molecular findings and immunological parameters.

Methods

The population of an HIV clinic is prospectively followed with Thin prep anal smear testing. Clinical arrays were used to identify HPV infection. HPV detection was examined in relation to epidemiological information, cytological changes and immunological parameters. Univariate and multivariate analysis were used.

Summary of results

105 pts (92.3% male) with a median duration of HIV infection of 3 years (IQR: 1–7.8 years) have been examined. Mean value of current CD4 was 431.7, b 223/mm3, and of current HIV viral load was 364.5 c/mL (IQR: non-detected -9880 c/mL, 19/42 <50 c/mL). Cytological changes were detected in 62% of the population and high grade AIN in 3.7% of the population. HPV was detected with clinical arrays in 92% of the population. HPV detection by arrays correlated with the presence of cytological changes (p = 0.01). HPV positivity was associated with age (p = 0.02), number of sexual partners (five or more over the last year; p = 0.05), and lower CD4 counts (p = 0.02). After adjustment for age and number of sexual partners, only decreasing CD4 counts remained an important predictor of HPV positivity (b=-0.01, p = 0.03).

Conclusion

HPV infection was prevalent in this patient cohort and was associated with the number of sexual partners, lower CD4 counts and the development of cytopathological changes. HPV infection may be better controlled in HIV pts at a better immunological state. Prospective follow-up of HIV pts with HPV is necessary for the prevention of peri-anal malignancies.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Protopas, K., Tsiodras, S., Chranioti, K. et al. HPV infection in HIV-positive subjects and molecular epidemiology. JIAS 11, P294 (2008). https://doi.org/10.1186/1758-2652-11-S1-P294

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  • DOI: https://doi.org/10.1186/1758-2652-11-S1-P294

Keywords

  • Sexual Partner
  • Immunological Parameter
  • Cytological Finding
  • Smear Testing
  • Cytological Change