Abstract:
:Little is known about age-dependent variation in outcomes of cervical cytology with modern technologies. This population-based study evaluated age-dependent changes after routine implementation of ThinPrep and SurePath technology in two independent laboratories, and controlled for time trends in a third laboratory using manually read conventional cytology continually. Data were collected from the Danish National Health Care Registers. For each laboratory, we compared proportions of abnormal cytology defined as atypical squamous cells of undetermined significance or worse (ASCUS+) by age and technology phase. The study included 489,960 cytological samples with no recent abnormality from women aged 23-59 years, routinely screened between 1998 and 2007. Implementation of SurePath liquid-based cytology (LBC) was followed by an increase in abnormal cytology in women aged 23-29 years from 4.6 to 6.1%, relative proportion (RP): 1.31 [95% confidence interval (CI): 1.08-1.61], and a decrease in women aged 45-59 years from 2.9 to 2.0%, RP: 0.71 (95% CI: 0.60-0.83). Implementation of ThinPrep LBC was followed by a decrease in abnormal cytology both in women aged 23-29 years from 7.7 to 6.8%, RP: 0.89 (95% CI: 0.78-1.02) and in women aged 45-59 years from 3.4 to 1.0%, RP: 0.30 (95% CI: 0.24-0.37). With implementation of imaging-assisted reading, regardless of the brand of technology, the proportion of abnormality increased by around 30% in all age groups (range from 19 to 41%). In the laboratory with unchanged technology no trends in abnormality proportions were observed. The impact of LBC implementation on cytological abnormality proportions varied considerably across age groups.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Rask J,Lynge E,Franzmann M,Hansen B,Hjortebjerg A,Rygaard C,Schledermann D,Wåhlin A,Rebolj Mdoi
10.1002/ijc.28532subject
Has Abstractpub_date
2014-05-01 00:00:00pages
2168-79issue
9eissn
0020-7136issn
1097-0215journal_volume
134pub_type
杂志文章abstract::As part of a collaborative study of risk factors for childhood brain tumours, the effects of the mother's smoking and her potential for passive smoking exposure during the pregnancy were assessed in a case-control study. Parents of 91 cases and 321 population controls from Northern Italy, matched for age, sex and resi...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
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abstract::Oncogenic HPV types are the major cause of worldwide cervical cancer, but only a small proportion of infected women will develop high-grade cervical intraepithelial neoplasia or cancer (CIN2/3+). We performed a prospective study including 781 women with normal, atypical squamous cells of undetermined significance (ASC...
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journal_title:International journal of cancer
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