title: Prevalence of genital human papillomavirus among rural and urban populations in southern Yunnan province, China.
abstract: This study was designed to investigate and compare the HPV prevalence, genotypes distribution and associated risk factors in rural and urban women living in Xishuang Banna district, in the province of Yunnan. A total of 177 and 190 women from rural and urban areas were engaged, respectively. HPV DNA was amplified using the L1 consensus primers system (MY09/11 and GP5/6) and HPV GenoArray test was conducted for genotyping. Proportions were compared by chi-square test, and logistic regression was used to evaluate risk factors. A total of 54 women were positive for HPV DNA. Among rural women, 23 women were positive for HPV infection, of which 21 showed a single infection and 2 had a multiple infection. HPV-16 (10/23) was the most prevalent genotype followed by HPV-52 (5/23), and HPV-58 (5/23). Urban women had a higher infection rate for overall HPV (31/54) and for multiple genotype infection (8/31). HPV-52 (9/31) was the most prevalent genotype followed by HPV-39 (7/31) and HPV-68 (5/31). The age-specific HPV prevalence was also different between rural and urban women. In urban area, women with age <35 years had the highest HPV prevalence, which declined thereafter as age advanced. However, in rural women the highest HPV prevalence was observed in an older age group (>56 years). Ethnicity, smoking and parity were significantly associated with HPV infection among urban women. Our study demonstrates that HPV prevalence and genotype distribution varies among women from rural and urban areas in the south of Yunnan.
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Baloch
authors.affiliation: Yunnan Province, Kunming, China.
authors.forename: T
authors.initials: T
authors.lastname: Yuan
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: S
authors.initials: S
authors.lastname: Yindi
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Feng
authors.affiliation: The Second Affiliated Hospital, Kunming Medical University, Kunming, China.
authors.forename: W
authors.initials: W
authors.lastname: Tai
authors.affiliation: Yunnan Province, Kunming, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: L
authors.initials: L
authors.lastname: Liu
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: A
authors.initials: A
authors.lastname: Zhang
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.affiliation: Yunnan Province, Kunming, China.
authors.forename: X
authors.initials: X
authors.lastname: Wu
authors.affiliation: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
authors.forename: X
authors.initials: X
authors.lastname: Xia
mesh_terms: D000328:Adult; D000367:Age Factors; D002681:China / Q000453:epidemiology; D005260:Female; D005838:Genotype; D006801:Humans; D008875:Middle Aged; D027383:Papillomaviridae / Q000302:isolation & purification* / Q000472:pathogenicity; D030361:Papillomavirus Infections / Q000453:epidemiology*; D016133:Polymerase Chain Reaction; D015995:Prevalence; D018570:Risk Assessment; D012307:Risk Factors; D012424:Rural Population / Q000706:statistics & numerical data*; D017678:Sex Distribution; D014505:Urban Population / Q000706:statistics & numerical data*