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Table 2 Methodological aspects of recent major guidelines for hypertension

From: Methods underpinning national clinical guidelines for hypertension: describing the evidence shortfall

Guideline Development group describeda New systematic reviewing Used existing systematic reviewsc Literature searchb Grading of evidenced Grading of recommendationsd
CMA P N Y Y Y Y
WHO P N Y N N N
VHA P N N Y Y Y
SIGN Y N Y Y Y Y
ESH Y N Y N N N
ICSI N N y N Y N
JNC P N Y N Y N
SA P N y N N N
BHS P N Y N Y Y
NICE Y Y Y Y Y Y
  1. a Y/N: Includes/does not include description of stakeholders involved in the development process, including patient representatives and any conflicts of interest.
  2. P: Partially – a list of names with institutional affiliations was provided.
  3. b Y/N: Searches were/were not undertaken, at least through Medline.
  4. c Y: Made extensive use of existing systematic reviews (referenced 7 or more).
  5. y: Made partial use of existing systematic reviews (referenced 6 or less).
  6. N: Did not use existing systematic reviews.
  7. d Y/N: Reports/does not report explicit grading of the quality of the supporting evidence/recommendations.