Screening for cervical cancer

CONTEXT: Methods that improve detection of serious cervical lesions while minimizing excess screening are the key to advancing cervical cancer prevention. OBJECTIVE: To examine the evidence about benefits and harms of screening among older women (ages 65 and older) and those who have had hysterectom...

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Bibliographic Details
Main Authors: Hartmann, Katherine E., Hall, Susan A. (Author), Nanda, Kavita (Author), Boggess, John F. (Author)
Corporate Authors: United States Agency for Healthcare Research and Quality, Research Triangle Institute-University of North Carolina Evidence-based Practice Center, U.S. Preventive Services Task Force
Format: eBook
Language:English
Published: Rockville (MD) Agency for Healthcare Research and Quality (US) [2002], 2002
Series:Systematic evidence reviews
Subjects:
Online Access:
Collection: National Center for Biotechnology Information - Collection details see MPG.ReNa
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100 1 |a Hartmann, Katherine E. 
245 0 0 |a Screening for cervical cancer  |h Elektronische Ressource  |c prepared for Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services ; prepared by Research Triangle Institute/University of North Carolina ; Katherine E Hartmann, Susan A Hall, Kavita Nanda, John F Boggess, Dennis Zolnoun 
260 |a Rockville (MD)  |b Agency for Healthcare Research and Quality (US)  |c [2002], 2002 
300 |a 1 online resource  |b illustrations 
505 0 |a Includes bibliographical references 
653 |a Age Factors 
653 |a Uterine Cervical Neoplasms / virology 
653 |a United States 
653 |a Mass Screening 
653 |a Uterine Cervical Neoplasms / diagnosis 
653 |a Papillomavirus Infections / diagnosis 
653 |a Early Detection of Cancer / methods 
700 1 |a Hall, Susan A.  |e [author] 
700 1 |a Nanda, Kavita  |e [author] 
700 1 |a Boggess, John F.  |e [author] 
710 2 |a United States  |b Agency for Healthcare Research and Quality 
710 2 |a Research Triangle Institute-University of North Carolina Evidence-based Practice Center 
710 2 |a U.S. Preventive Services Task Force 
041 0 7 |a eng  |2 ISO 639-2 
989 |b NCBI  |a National Center for Biotechnology Information 
490 0 |a Systematic evidence reviews 
500 |a Title from HTML header. - "January 2002." 
856 4 0 |u https://www.ncbi.nlm.nih.gov/books/NBK42831  |3 Volltext  |n NLM Bookshelf Books  |3 Volltext 
082 0 |a 610 
520 |a CONTEXT: Methods that improve detection of serious cervical lesions while minimizing excess screening are the key to advancing cervical cancer prevention. OBJECTIVE: To examine the evidence about benefits and harms of screening among older women (ages 65 and older) and those who have had hysterectomies, and to examine the diagnostic performance of new technologies and human papilloma virus (HPV) testing for detecting cervical lesions. DATA SOURCES: We identified English-language articles on cervical neoplasia, cervical dysplasia, and screening from a comprehensive search of the MEDLINE database from 1995 through June 2000. In addition, we used published systematic reviews, the second Guide to Clinical Preventive Services, and peer review to assure a complete update of specific topics.  
520 |a The prior recommendation of the US Preventive Services Task Force to discontinue Pap testing after hysterectomy for benign disease is supported. For making decisions about screening modality in US populations, evidence about these new technologies for cytology screening and HPV testing is currently limited. Controlled trials and prospective cost evaluation of new screening strategies in each of these areas are required. Important trials will be completed in 2001 that may clarify our conclusions 
520 |a STUDY SELECTION: We included articles that reported on screening for squamous cell carcinoma of the cervix if they included the age distribution of the study population and presented analyses stratified by age or if they included hysterectomy status as a covariate. For diagnostic tools, we required that the test be used as part of a screening strategy, that the method be compared with a reference standard, and that all cells of a 2x2 table can be completed. DATA EXTRACTION: We extracted the following data from articles addressing screening among older women and those who have had a hysterectomy: study design, objectives, location and timeframe, source of the data (e.g., population-based registry), participants, screening program used, outcomes and measures, and results relevant to age and screening interval.  
520 |a The literature about new diagnostic tools is limited by lack of histologically validated performance. Using tools such as liquid cytology, neural-net rescreening, and computer-based review algorithms improves sensitivity; however, this improvement is predominantly for detection of low-grade lesions. The impact on specificity is poorly documented. Sensitivity of HPV testing for screening detection of high-grade lesions is competitive with conventional cytology (roughly 82%); specificity is lower (78%); and negative predictive value is good (99%). For triage of women with abnormal Pap tests, sensitivity for detecting high-grade lesions is 85%, specificity is 60%, and negative predictive value is 97%. CONCLUSION: The yield of screening among older women who have been previously screened decreases with age; if recommendations are not modified, older women are disproportionately likely to have evaluations for false-positive findings.  
520 |a For articles about diagnostic tests, we extracted study design, test methods, location, patient population, outcome measures (emphasizing documentation of the reference standard), prevalence of lesions, and test characteristics including sensitivity, specificity, and predictive values. We used scoring checklists to summarize strengths of the publications; we also evaluated the validity of each article and the overall quality of the evidence. DATA SYNTHESIS: The evidence about age and hysterectomy is observational, predominantly from population- or care-based data. The findings are consistent: risk of cervical cancer or abnormalities falls with age; high-grade and more severe lesions are detected in fewer than 1 per 1,000 Pap tests among women older than 60 who have had prior screening; and longer histories of prior normal Pap tests further reduces risk. After hysterectomy, high-grade vaginal lesions are rare, fewer than 2 to 4 per 10,000 tests.