open access

Vol 71, No 6 (2021)
Guidelines / Expert consensus
Published online: 2021-12-06
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Systems for grading the strength of recommendations in clinical practice guidelines in oncology

Anna Rychert1, Dominik Roman Dziurda1, Magdalena Koperny1, Magdalena Maria Krasztel1, Katarzyna Joanna Kędzior1, Wojciech Wysoczański1, Roman Topór-Mądry1
DOI: 10.5603/NJO.2021.0074
·
Nowotwory. Journal of Oncology 2021;71(6):407-416.
Affiliations
  1. Agency for Health Technology Assessment and Tariff System, Warsaw, Poland

open access

Vol 71, No 6 (2021)
Guidelines and recommendations
Published online: 2021-12-06

Abstract

Introduction. In order to improve the applicability of clinical practice guidelines, their authors assign recommendations with grades denoting the degree of conviction regarding their practical application. Nevertheless even within one branch of medicine, significant differences between the grading systems arise.

Material and methods. To identify these systems, websites of societies and institutions publishing oncology guidelines were searched. Only high-quality, regularly updated guidelines were included.

Results. Five systems were analysed – all incorporate quality of evidence and strength of recommendation, but vary in the methods of their assessment and structure of the scales.

Discussion. The described systems depend on the review of data, the quality of which supports the ascribed strength. Systems differ with regard to the methods of assessing the quality, quantity and consistency of evidence, potentially leading to assigning different grades of strength to recommendations based on the same studies.

Conclusions. The introduction of unified grading systems across each branch of medicine could aid the development of unambiguous recommendations that are easy to introduce within the healthcare system.

Abstract

Introduction. In order to improve the applicability of clinical practice guidelines, their authors assign recommendations with grades denoting the degree of conviction regarding their practical application. Nevertheless even within one branch of medicine, significant differences between the grading systems arise.

Material and methods. To identify these systems, websites of societies and institutions publishing oncology guidelines were searched. Only high-quality, regularly updated guidelines were included.

Results. Five systems were analysed – all incorporate quality of evidence and strength of recommendation, but vary in the methods of their assessment and structure of the scales.

Discussion. The described systems depend on the review of data, the quality of which supports the ascribed strength. Systems differ with regard to the methods of assessing the quality, quantity and consistency of evidence, potentially leading to assigning different grades of strength to recommendations based on the same studies.

Conclusions. The introduction of unified grading systems across each branch of medicine could aid the development of unambiguous recommendations that are easy to introduce within the healthcare system.

Get Citation

Keywords

grading system; guidelines; recommendation; quality of evidence; strength of recommendation

About this article
Title

Systems for grading the strength of recommendations in clinical practice guidelines in oncology

Journal

Nowotwory. Journal of Oncology

Issue

Vol 71, No 6 (2021)

Article type

Guidelines / Expert consensus

Pages

407-416

Published online

2021-12-06

DOI

10.5603/NJO.2021.0074

Bibliographic record

Nowotwory. Journal of Oncology 2021;71(6):407-416.

Keywords

grading system
guidelines
recommendation
quality of evidence
strength of recommendation

Authors

Anna Rychert
Dominik Roman Dziurda
Magdalena Koperny
Magdalena Maria Krasztel
Katarzyna Joanna Kędzior
Wojciech Wysoczański
Roman Topór-Mądry

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