ArticleBMC infectious diseases2015
Pre-vaccination type-specific HPV prevalence in confirmed cervical high grade lesions in the Māori and non-Māori populations in New Zealand.
Article in BMC infectious diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
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- Cervical Precancer Treatment in Low- and Middle-Income Countries: A Technology Overview.Journal of global oncology · 2017Review
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Authors and funding
7 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNew Zealand initiated HPV vaccination in 2008, and has attained 3-dose coverage of ~50 % in 12-13 year old girls. Due to the success of program initiatives in Māori girls, higher coverage rates of ~60 % have been achieved in this group. We have previously reported a benchmark overall pre-vaccination prevalence of oncogenic HPV infection in high grade cervical lesions in New Zealand. The current extended analysis provides separate pre-vaccination benchmark prevalence for Māori and non-Māori women.
methodsThe National Cervical Screening Programme Register (NCSP-R) was used to identify any woman aged 20-69 years of age with an index high grade cytology report from 2009-2011. Extended recruitment was performed until 2012 in clinics with a high proportion of Māori women. Ethnicity status was based on self-reported information by participating women through phone contact supplemented by recordings on the study questionnaire (the NCSP-R was not used to extract ethnicity status). A total of 730 women consented to participate and had a valid HPV test result; 418 of these had histologically-confirmed cervical intraepithelial neoplasia (CIN) 2/3 lesions (149 Māori, 269 non-Māori). The prevalence of any cervical oncogenic HPV infection, HPV16, and HPV18 was calculated in women with CIN2/3.
resultsIn confirmed CIN2/3, the prevalence of any oncogenic HPV, HPV16 and HPV18 was 96 % (95 % CI:91-99 %), 54 % (95 % CI:46-63 %), 11 % (95 % CI:7-18 %) in Māori and 96 % (95 % CI:93-98 %), 54 % (95 % CI:48-60 %), 11 % (95 % CI:7-15 %) in non-Māori women, respectively. Age-specific patterns of infection for HPV16/18 in confirmed CIN2/3 differed between the two groups (Pinteraction = 0.02), with a lower prevalence in younger vs. older Māori women (57 % in 20-29 years vs 75 % in 40-69 years) but a higher prevalence in younger vs. older non-Māori women (70 % in 20-29 years vs 49 % in 40-69 years); the difference in the age-specific patterns of infection for HPV16/18 was not significant either when considering confirmed CIN2 alone (p = 0.09) or CIN3 alone (p = 0.22).
conclusionsThe overall prevalence of vaccine-included types in CIN2/3 was similar in Māori and non-Māori women, implying that the long-term effects of vaccination will be similar in the two groups.
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