The Resource Patients with positive screening fecal occult blood tests : evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes, prepared for Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service ; prepared by Evidence-based Synthesis Program (ESP), Coordinating Center, Portland VA Medical Center ; principal investigator, Kim Peterson ; contributing investigators, Susan Carson, Linda Humphrey, Mark Helfand

Patients with positive screening fecal occult blood tests : evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes, prepared for Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service ; prepared by Evidence-based Synthesis Program (ESP), Coordinating Center, Portland VA Medical Center ; principal investigator, Kim Peterson ; contributing investigators, Susan Carson, Linda Humphrey, Mark Helfand

Label
Patients with positive screening fecal occult blood tests : evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes
Title
Patients with positive screening fecal occult blood tests
Title remainder
evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes
Statement of responsibility
prepared for Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service ; prepared by Evidence-based Synthesis Program (ESP), Coordinating Center, Portland VA Medical Center ; principal investigator, Kim Peterson ; contributing investigators, Susan Carson, Linda Humphrey, Mark Helfand
Title variation
Evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes
Creator
Contributor
Author
Sponsoring body
Subject
Language
eng
Summary
"The American Cancer Society estimates that colorectal cancer (CRC) will be the third most common cause of cancer death for both men and women in the U.S. in 2013. The natural history of the disease suggests that longer delays in CRC diagnosis will negatively influence stage at diagnosis and long-term survival. CRC may be diagnosed by screening asymptomatic patients or by evaluation of symptomatic patients. Previous studies investigating the influence of delays on survival or cancer stage at diagnosis have primarily focused on the evaluation of time from first symptom development in symptomatic patients and have demonstrated inconsistent results. For example, among 13 studies published between 1977 and 2006 included in a 2007 systematic review by Ramos and colleagues, 10 found no association between the symptom-to-diagnosis interval (SDI) and survival and the other three found that increased delays resulted in better chances of survival. As for the relationship between SDI and tumor stage, among 18 studies, 11 found no association, four found that shorter delays were associated with an earlier stage at diagnosis and three paradoxically found that a greater delay was associated with an earlier stage at diagnosis. As noted by Ramos et al., the SDI risk function is likely nonlinear and multifaceted, reflecting a complex interaction between tumor biology and location, the clinical course, patient behavior, and the functioning of the healthcare system, and the studies have varied in their methods for adjusting for these confounding factors. These findings highlight the importance of detecting colorectal cancer through screening, before symptoms appear"--Publisher's description
Member of
Cataloging source
MMU
http://library.link/vocab/creatorName
Peterson, Kim
Government publication
federal national government publication
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
NLM call number
WI 529
http://library.link/vocab/relatedWorkOrContributorName
  • Carson, Susan
  • Humphrey, Linda L.
  • Helfand, Mark
  • United States
  • Portland VA Medical Center
Series statement
Evidence-based synthesis program
http://library.link/vocab/subjectName
  • Colorectal Neoplasms
  • Colorectal Neoplasms
  • Evidence-Based Medicine
  • Mass Screening
  • Occult Blood
  • Outcome and Process Assessment (Health Care)
  • Time Factors
Label
Patients with positive screening fecal occult blood tests : evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes, prepared for Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service ; prepared by Evidence-based Synthesis Program (ESP), Coordinating Center, Portland VA Medical Center ; principal investigator, Kim Peterson ; contributing investigators, Susan Carson, Linda Humphrey, Mark Helfand
Instantiates
Publication
Note
  • "VA-ESP Project #09-199."
  • "April 2013."
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
936068841
Extent
1 online resource (20 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia
Media type code
c
Other physical details
illustrations.
Specific material designation
remote
System control number
(OCoLC)936068841
Label
Patients with positive screening fecal occult blood tests : evidence brief on the relationship between time delay to colonoscopy and colorectal cancer outcomes, prepared for Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service ; prepared by Evidence-based Synthesis Program (ESP), Coordinating Center, Portland VA Medical Center ; principal investigator, Kim Peterson ; contributing investigators, Susan Carson, Linda Humphrey, Mark Helfand
Publication
Note
  • "VA-ESP Project #09-199."
  • "April 2013."
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
936068841
Extent
1 online resource (20 pages)
Form of item
online
Media category
computer
Media MARC source
rdamedia
Media type code
c
Other physical details
illustrations.
Specific material designation
remote
System control number
(OCoLC)936068841

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