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Effectiveness of an organized cervical cancer screening program in Korea: Results from a cohort study

Cited 34 time in Web of Science Cited 35 time in Scopus
Issue Date
2009-01-01
Publisher
WILEY-LISS
Citation
INTERNATIONAL JOURNAL OF CANCER; Vol.124 1; 188-193
Keywords
cervical cancerPap smeareffectivenesscohort studyscreening
Abstract
Although the value of cervical cancer screening is widely acknowledged, the effectiveness of an organized cervical cancer screening program in Korea has never been evaluated. We investigated the associations of the frequency of cervical cancer screening with cervical cancer incidence using data from a large prospective cohort study. In this analysis, 253,472 women without a hysterectomy or previous cancer diagnosis were included. Follow-up was between 1995 and 2002. Frequency of Pap smear testing was determined by searching the National Health Examination Database. Using the Korean Central Cancer Registry, 248 cases of invasive cervical cancer and 346 cases of carcinoma in situ (CIS) of the cervix were identified. Subjects screened 2 or more times showed a 71% (corrected reduction 611%) and a 66% (corrected reduction 53%) reduced risk of invasive cervical cancer and CIS of the cervix, respectively, as compared with unscreened subjects [relative risk (RR) = 0.29; 95% confidence interval (CI) = 0.20-0.45; RR = 0.34; 95% CI = 0.25-0.46, respectively]. Women with a normal or benign pap smear had a statistically significantly lower risk of invasive cervical cancer and CIS of cervix compared with those never screened. In age-stratified analyses, there was a significant reduction in cervical cancer incidence among women aged 30 and over who were screened 2 or more times compared with women never screened. The results of this prospective cohort study show that regular screening of cervical cancer reduces invasive cervical cancer incidence and CIS of the cervix among Korean women. (C) 2008 Wiley-Liss. Inc.
ISSN
0020-7136
Language
English
URI
https://hdl.handle.net/10371/76918
DOI
https://doi.org/10.1002/ijc.23841
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College of Medicine/School of Medicine (의과대학/대학원)Preventive Medicine (예방의학전공)Journal Papers (저널논문_예방의학전공)
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