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South African National Cancer Registry: Effect of withheld data from private health systems on cancer incidence estimates
  • Published Date:
    Jan 12 2015
  • Source:
    S Afr Med J. 105(2):107-109.
Filetype[PDF - 252.52 KB]


Details:
  • Pubmed ID:
    26242527
  • Pubmed Central ID:
    PMC4591919
  • Description:
    Background

    The National Cancer Registry (NCR) was established as a pathology-based cancer reporting system. From 2005 to 2007, private health laboratories withheld cancer reports owing to concerns regarding voluntary sharing of patient data.

    Objectives

    To estimate the impact of under-reported cancer data from private health laboratories.

    Methods

    A linear regression analysis was conducted to project expected cancer cases for 2005 – 2007. Differences between actual and projected figures were calculated to estimate percentage under-reporting.

    Results

    The projected NCR case total varied from 53 407 (3.8% net increase from actual cases reported) in 2005 to 54 823 (3.7% net increase) in 2007. The projected number of reported cases from private laboratories in 2005 was 26 359 (19.7% net increase from actual cases reported), 27 012 (18.8% net increase) in 2006 and 27 666 (28.4% net increase) in 2007.

    Conclusion

    While private healthcare reporting decreased by 28% from 2005 to 2007, this represented a minimal impact on overall cancer reporting (net decrease of <4%).

  • Document Type:
  • Collection(s):
  • Funding:
    CC999999/Intramural CDC HHS/United States
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