title: Use of electronic health record data to evaluate overuse of cervical cancer screening.
abstract: BACKGROUND
  National organizations historically focused on increasing use of effective services are now attempting to identify and discourage use of low-value services. Electronic health records (EHRs) could be used to measure use of low-value services, but few studies have examined this. The aim of the study was to: (1) determine if EHR data can be used to identify women eligible for an extended Pap testing interval; (2) determine the proportion of these women who received a Pap test sooner than recommended; and (3) assess the consequences of these low-value Pap tests.
  
  
  METHODS
  Electronic query of EHR data identified women aged 30-65 years old who were at low-risk of cervical cancer and therefore eligible for an extended Pap testing interval of 3 years (as per professional society guidelines). Manual chart review assessed query accuracy. The use of low-value Pap tests (ie, those performed sooner than recommended) was measured, and adverse consequences of low-value Pap tests (ie, colposcopies performed as a result of low-value Pap tests) were identified.
  
  
  RESULTS
  Manual chart review confirmed query accuracy. Two-thirds (1120/1705) of low-risk women received a Pap test sooner than recommended, and 21 colposcopies were performed as a result of this low-value Pap testing.
  
  
  CONCLUSIONS
  Secondary analysis of EHR data can accurately measure the use of low-value services such as Pap testing performed sooner than recommended in women at low risk of cervical cancer. Similar application of our methodology could facilitate efforts to simultaneously improve quality and decrease costs, maximizing value in the US healthcare system.
authors.affiliation: Department of Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA. j-mathias@md.northwestern.edu
authors.forename: Jason S
authors.initials: JS
authors.lastname: Mathias
authors.forename: Dana
authors.initials: D
authors.lastname: Gossett
authors.forename: David W
authors.initials: DW
authors.lastname: Baker
mesh_terms: D000328:Adult; D000368:Aged; D055088:Early Detection of Cancer / Q000706:statistics & numerical data*; D057286:Electronic Health Records; D005260:Female; D019983:Guideline Adherence; D006801:Humans; D008875:Middle Aged; D017410:Practice Guidelines as Topic; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis*; D014626:Vaginal Smears / Q000191:economics / Q000706:statistics & numerical data*