Chlamydia trachomatis infection and persistence of human papillomavirus.

Silins, IlvarsLund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups (author)

Human papillomavirus (HPV) persistence is the major cause of cervical cancer, but most HPV infections will not persist and risk factors for HPV persistence are not well known. Chlamydia (C.) trachomatis infection seems to also be associated with cervical cancer. We investigated whether C. trachomatis infection is a risk factor for HPV persistence. In a cohort of 12,527 women participating in a population-based HPV screening trial in Sweden, 6,418 women completed testing for HPV DNA by general primer PCR and typing by reverse dot blot hybridization. On average 19 months later, 303 women that had been HPV-positive and had normal cytology at enrollment completed a new HPV test. Environmental exposures were assessed by an 87-itern questionnaire. Previous sexually transmitted infections were also investigated by serology. At follow-up, 44% of the women were positive for the same type of HPV DNA as at enrollment. Persistence correlated with length of follow-up (p < 0.01) and condom use seemed to protect against HPV persistence (p < 0.05). The most significant risk factor for persistent presence of HPV DNA was self-reported history of previous C. trachomatis infection (relative risk in multivariate model = 2.09; 95% confidence interval = 1.05-4.18). We conclude that persistence of oncogenic HPV infections is more likely among women with a previous C. trachomatis infection.

Ryd, Walter (author)
Strand, Anders (author)
Wadell, GöranUmeå universitet,Virologi (author)
Törnberg, SvenKarolinska Institutet (author)
Hansson, Bengt-GöranLund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups(Swepub:lu)mikr-bha (author)
Wang, XiaohongLund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups(Swepub:lu)mikr-xwa (author)
Arnheim, LisenKarolinska Institutet (author)
Dahl, Viktor (author)
Bremell, Daniel (author)
Persson, KennethLund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups(Swepub:lu)mikr-kpe (author)
Dillner, JoakimKarolinska Institutet,Lund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups(Swepub:lu)mikr-jdi (author)
Rylander, EvaKarolinska Institutet (author)
Klinisk mikrobiologi, MalmöForskargrupper vid Lunds universitet (creator_code:org_t)

By the author/editor: Silins, Ilvars; Ryd, Walter; Strand, Anders; Wadell, Göran; Törnberg, Sven; Hansson, Bengt-G ...; show more...; Wang, Xiaohong; Arnheim, Lisen; Dahl, Viktor; Bremell, Daniel; Persson, Kenneth; Dillner, Joakim; Rylander, Eva; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Cancer and Oncol ...

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