Genotype-specific concordance of oral and genital human papillomavirus infections among marital couples is low




Kero Katja, Rautava Jaana, Louvanto Karoliina, Syrjänen Kari, Grenman Seija, Syrjänen Stina

2016

European Journal of Clinical Microbiology and Infectious Diseases

35

4

697

704

8

0934-9723

DOIhttps://doi.org/10.1007/s10096-016-2589-9



Data on genotype-specific concordance of oral-oral and genital-oral HPV infections among marital couples are key to understand HPV transmission between spouses. Genotype-specific concordance of HPV infections (oral/genital) and their co-variates among 131 marital couples were determined during 6-year follow-up (FU). Seven oral scrapings were taken from both spouses, accompanied by six genital samplings from the women and one (at baseline) from the male partners. HPV-genotyping was performed by nested PCR and a Luminex®-based Multimetrix Assay. Demographic data were collected with questionnaires at baseline and study conclusion. Prevalence of oral HPV varied from 10.3 to 27.0 % and 15.8 to 31.3 % in women and men, respectively. At baseline, 37.6 % of the male genital samples were HPV-positive while in female genital samples, HPV prevalence varied from 13.3 to 59.4 %. Only 15 couples had HPV genotype-specific concordance (oral-oral n = 7; male oral-female genital n = 9; female oral-male genital n = 2). In the nested case–control setting, higher number of deliveries (OR 0.145, 95%CI 0.030–0.706, p = 0.017) and higher number of intercourse (OR 0.488, 95%CI 0.243–0.978, p = 0.043) decreased the likelihood of concordant HPV infections while practicing oral sex increased the risk (OR 0.299, 95%CI 0.120–0.748, p = 0.010). In multivariate analysis, the likelihood of concordance was decreased by higher number of pregnancies of the female partner (p = 0.020) and by higher frequency of intercourse reported by the male spouse (p = 0.027). To conclude, asymptomatic HPV infections were common in both spouses while genotype-specific concordance was low. This supports the view that HPV profile of the spouses has been established before the current marital relationship.



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