Document Detail

A comparison of variability in Papanicolaou and liquid-based cytology inadequacy rates using Shewhart control charts.
MedLine Citation:
PMID:  16879264     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To use Shewhart control charts to compare variability in inadequacy rates from Papanicolaou (Pap) and liquid-based cytology (LBC). DESIGN: Retrospective analysis of quality assurance data. SETTING: Eleven Welsh cytology laboratories. METHODS: Shewhart 'p' charts were plotted for proportions of slides reported as inadequate. Charts were compared for statistical control. MAIN OUTCOME MEASURES: Evidence of statistical control in the processes. RESULTS: Control charts allowed easy interpretation of patterns in the data. Variability in inadequacy rates was much lower for LBC than for Pap cytology. CONCLUSION: Monitoring inadequate rates with Shewhart charts provides more information than tabular monitoring reports, assisting in quality improvement. With respect to inadequacy rates, LBC is less variable than Pap cytology.
R Fox; A B J Nix; H Fielder
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Publication Detail:
Type:  Comparative Study; Journal Article; Multicenter Study    
Journal Detail:
Title:  Cytopathology : official journal of the British Society for Clinical Cytology     Volume:  17     ISSN:  0956-5507     ISO Abbreviation:  Cytopathology     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-08-01     Completed Date:  2006-09-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9010345     Medline TA:  Cytopathology     Country:  England    
Other Details:
Languages:  eng     Pagination:  175-81     Citation Subset:  IM    
National Public Health Service for Wales, Temple of Peace and Health, Cardiff, UK.
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MeSH Terms
Mass Screening
Medical Records
Observer Variation
Retrospective Studies
Uterine Cervical Diseases / diagnosis*
Vaginal Smears* / methods,  statistics & numerical data

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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