Evidence map›Paper›PMID 25376967›Full record

ArticleCancer2015

Critical evaluation of the scientific content in clinical practice guidelines.

Zaid M Abdelsattar, Bradley N Reames, Scott E Regenbogen, Samantha Hendren, Sandra L Wong

Abstract read
In one paragraph

Article in Cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Management of rectal cancer in Canada: an evidence-based comparison of clinical practice guidelinesCanadian journal of surgery. Journal canadien de chirurgie · 2020
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Zaid M AbdelsattarDepartment of Surgery, University of Michigan, Ann Arbor, Michigan.
Bradley N Reames
Scott E Regenbogen
Samantha Hendren
Sandra L Wong

Funding

Health Services Research Training Years 32-36T32HS000053 · AHRQ · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HIRTH, RICHARD A · 1992 to 2024
$7.3M
Improving Rectal Cancer Surgery Through Regional CollaborationK07CA163665 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HENDREN, SAMANTHA KATHLEEN · 2012 to 2015
$700k
Understanding variation in treatment intensity of poor prognosis cancersK08HS020937 · AHRQ · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WONG, SANDRA L · 2012 to 2015
$537k
AHRQ HHS 1K08 HS20937-01AHRQ HHS K08 HS020937AHRQ HHS T32 HS000053AHRQ HHS T32 HS000053-22NCI NIH HHS 1K07 CA163665-22NCI NIH HHS K07 CA163665
6 · The paper itself

Abstract

backgroundIncreasing pressures to provide high-quality evidence-based cancer care have driven the rapid proliferation of clinical practice guidelines (CPGs). The quality and validity of CPGs have been questioned, and adherence to guidelines is relatively low. The purpose of this study was to critically evaluate the development process and scientific content of CPGs.

methodsCPGs addressing management of rectal cancer were evaluated. We quantitatively assessed guideline quality with the validated Appraisal of Guidelines Research & Evaluation (AGREE II) instrument. We identified 21 independent processes of care using the nominal group technique. We then compared the evidence base and scientific agreement for the management recommendations for these processes of care.

resultsThe quality and content of rectal cancer CPGs varied widely. Mean overall AGREE II scores ranged from 27% to 90%. Across the 5 CPGs, average scores were highest for the clarity of presentation domain (85%; range, 58% to 99%) and lowest for the applicability domain (21%; range, 8% to 56%). Randomized controlled trials represented a small proportion of citations (median, 18%; range, 13%-35%), 78% of the recommendations were based on low- or moderate-quality evidence, and the CPGs only had 11 references in common with the highest-rated CPG. There were conflicting recommendations for 13 of the 21 care processes assessed (62%).

conclusionsThere is significant variation in CPG development processes and scientific content. With conflicting recommendations between CPGs, there is no reliable resource to guide high-quality evidence-based cancer care. The quality and consistency of CPGs are in need of improvement.

Indexed as

Practice Guidelines as TopicDisease ManagementEvidence-Based MedicineGuideline AdherenceHumansQuality of Health CareRectal Neoplasmsevidence-based medicinehealth servicesorganizationspractice guidelinesrectal neoplasms

Identifiers

PMID25376967
PMCPMC4339394

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.