Human papillomavirus prevalence and genotypes in an opportunistically screened Irish female population.
This study aims to evaluate human papillomavirus (HPV) prevalence and predominating genotypes in liquid-based cervical cytology samples from an Irish urban female population. In addition to use of routine cervical cytology testing, women are screened for HPV using the MY09/11 primers for the HPV L1 gene and primers for beta-globin amplification in a multiplex format. Overall, 996 women between the ages of 16 and 72 years (average age: 35) are included in the study and HPV prevalence was 19.8%. Cytology results showed that 88.9% were normal, 9% borderline or mild dyskaryosis, 1.1% moderate dyskaryosis and 0.9% severe dyskaryosis. Human papillomavirus prevalence in women under 25 was 31%, reducing to 23% in women in the 25-35 age group and to 11% in women over 35. Human papillomavirus prevalence increased with grade of cytology from 11.4% (normal) through 85.4% (borderline), 84% (mild), 100% (moderate) to 100% (severe dyskaryosis). HPV 16 (20%) and 18 (12%) were the most common high-risk types detected in the study. Other common high-risk types were (in descending order) HPV 66, 33, 53, 31 and 58. HPV 66 was associated with the detection of borderline abnormalities by cytology. This is the first population-based study of HPV prevalence in the normal healthy cervical screening population in the Republic of Ireland.
Keegan
H
H
Molecular Pathology Research Laboratory, Coombe Women's Hospital, Dublin, Ireland. keeganh28@yahoo.com
Ryan
F
F
Malkin
A
A
Griffin
M
M
Lambkin
H
H
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005838:Genotype; D006801:Humans; D007494:Ireland / Q000453:epidemiology; D008403:Mass Screening; D008875:Middle Aged; D027383:Papillomaviridae / Q000145:classification* / Q000235:genetics; D030361:Papillomavirus Infections / Q000175:diagnosis* / Q000453:epidemiology / Q000821:virology; D015995:Prevalence; D014504:Urban Health; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000821:virology; D014626:Vaginal Smears