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01.12.2017 | Research article | Ausgabe 1/2017 Open Access

BMC Cancer 1/2017

Cervical cytology and human papillomavirus among asymptomatic healthy volunteers in Vientiane, Lao PDR

BMC Cancer > Ausgabe 1/2017
Reika Takamatsu, Viengvansay Nabandith, Vatsana Pholsena, Phouthasone Mounthisone, Katsu Nakasone, Kentarou Ohtake, Naoki Yoshimi
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1186/​s12885-017-3900-6) contains supplementary material, which is available to authorized users.



Cervical cancer is the most common cancer in women living in Vientiane, Lao People’s Democratic Republic (PDR). This study examines cervical cytology using a liquid-based cytology (LBC) method and reports the presence of high-risk (HR) human papillomavirus (HPV).


We collected cervical samples from 1475 asymptomatic and healthy volunteers from six hospitals in Lao PDR. A total of 1422 volunteers (mean age 39.1 ± 6.4 years, range 30-54 years) were included in the final analysis. We performed HPV typing using the polymerase chain reaction technique to detect HR-HPV samples with abnormal cytology.


The overall rates of abnormal cytology and HR-HPV–positive in the samples were 9.3% (132/1422) and 47.7% (63/132), respectively. The samples with abnormal cytology included 13 high-grade squamous intraepithelial lesions and one squamous cell carcinoma case. The results showed that the most common type of HPV was HPV16 (20.5%) followed by HPV58 (9.1%).


Healthy women in Vientiane, the capital of Lao PDR, have high rates of abnormal cervical cytology and are likely to be HR-HPV-positive. A system for detection and prevention of cervical cancer in these women should be developed in the near future.
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