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01.12.2017 | Research article | Ausgabe 1/2017 Open Access

BMC Women's Health 1/2017

Self-sampling for human papillomavirus DNA detection: a preliminary study of compliance and feasibility in BOLIVIA

Zeitschrift:
BMC Women's Health > Ausgabe 1/2017
Autoren:
Pedro Surriabre, Gustavo Allende, Marcela Prado, Leyddy Cáceres, Diego Bellot, Andrea Torrico, Karina Ustariz, Shirley Rojas, Jaime Barriga, Pamela Calle, Ligia Villarroel, Rosse Mary Yañez, Marc Baay, Patricia Rodriguez, Véronique Fontaine
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12905-017-0490-z) contains supplementary material, which is available to authorized users.

Abstract

Background

Cervical cancer incidence and mortality rates in Bolivia are among the highest in Latin America. This investigation aims to evaluate the possibility of using simple devices, e.g. a cotton swab and a glass slide, for self-sampling in order to detect human papillomavirus (HPV) DNA by PCR in cervico-vaginal cells.

Methods

In the first phase of our study we evaluated the use of a glass slide as a transport medium for cervical cells. A physician took paired-cervical samples from 235 women. One sample was transported in Easyfix® solution and the other sample was smeared over a glass slide. Both were further analyzed and compared for human DNA recovery and HPV detection. A kappa value was determined to evaluate the agreement between the HPV DNA detection rates.
In the second phase of the study, 222 women from the urban, peri-urban and rural regions of Cochabamba were requested to perform self-sampling using the following devices: a cotton swab combined with a glass slide, and a vaginal tampon. Women gave their opinion about the self-sampling technique.
Finally, the agreement for high risk-HPV detection between self- and physician-collected samples was performed in 201 samples in order to evaluate the self-sampling technique.

Results

Firstly, the comparison between Easyfix® solution and the glass slide to transport clinical samples gave a good agreement for HPV DNA detection (κ = 0.71, 95% CI 0.60–0.81). Secondly, self-sampling, especially with cotton swab combined with glass slide, would generally be preferred over clinician sampling for a screening program based on HPV detection. Finally, we showed a good agreement between self- and physician collected samples for high risk-HPV detection (κ = 0.71, 95% CI 0.55–0.88).

Conclusions

Simple devices such as a cotton swab and a glass slide can be used to perform self-sampling and HPV DNA detection. Furthermore, most Bolivian women preferred self-sampling over clinician-sampling for cervical cancer screening.
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