Simpson Jr, S and Blomfield, P and Cornall, A and Tabrizi, SN and Blizzard, L and Turner, R, Front-to-back and dabbing wiping behaviour post-toilet associated with anal neoplasia and HR-HPV carriage in women with previous HPV-mediated gynaecological neoplasia, Cancer Epidemiology, 42 pp. 124-132. ISSN 1877-7821 (2016) [Refereed Article]
Copyright 2016 Published by Elsevier Ltd.
METHODS: Cross-sectional study of women with a previous HPV-mediated gynaecological neoplasia in Tasmania, Australia. Women presenting for follow-up gynaecological care had anal swab samples taken for anal cytology by Hologic Liquid ThinPrep, followed by HPV genotyping. Women with abnormal anal cytology were invited for high-resolution anoscopy. Potential risk factors, including post-toilet wiping behaviours, were queried by questionnaire while clinical covariates were extracted from medical records. Covariates of anal outcomes evaluated by log-binomial and log-multinomial regression.
RESULTS: From 163 women enrolled in the study, 65 (39.9%) had abnormal cytology, with 46 (28.2%) being high-grade. Of the 50 women with abnormal anal cytology having high-resolution anoscopy, 32 (64.0%) had abnormal histology with 13 (26.0%) being high-grade. Of the 123 women tested for HR-HPV DNA, 48 (39.0%) had HR-HPV detected, the most common genotypes being 16 and 51 (14/123, 11.4% for both). In addition to some known anal cancer risk factors, we found front-to-back wiping was associated with significantly increased (Prevalence ratio (PR) range: 1.99-3.60) prevalence of cytological and histological abnormality and HR-HPV carriage/co-carriage, while dabbing post-toilet was significantly associated with decreased prevalences (PR range: 0.50-0.62).
CONCLUSIONS: Post-toilet wiping behaviours were significantly associated with the prevalence of anal cytological, histological and HR-HPV carriage outcomes. This suggests a biologically plausible mechanism for HR-HPV introduction and the higher frequencies of anal neoplasia in women.
|Item Type:||Refereed Article|
|Keywords:||Anal neoplasia, Epidemiology, Human papillomavirus, Perineal hygiene, Post-toilet wiping, Women|
|Research Division:||Health Sciences|
|Research Field:||Epidemiology not elsewhere classified|
|Objective Group:||Clinical health|
|Objective Field:||Clinical health not elsewhere classified|
|UTAS Author:||Simpson Jr, S (Dr Steve Simpson JR)|
|UTAS Author:||Blomfield, P (Associate Professor Penelope Blomfield)|
|UTAS Author:||Blizzard, L (Professor Leigh Blizzard)|
|UTAS Author:||Turner, R (Professor Richard Turner)|
|Web of Science® Times Cited:||23|
|Deposited By:||Menzies Institute for Medical Research|
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