The GRADE website and membership

Yngve Falck-Ytter, M.D.Case Western Reserve University

School of MedicineBarcelona, January 12&13, 2012

GRADE January 2012

The GRADE web presence

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How do people find GRADE?

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Do people find GRADE?

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2005 2006 2007 2008 2009 2010 2011

GRADE working group 1 1 1 1 1 1 1

GRADE 100 100 100 8 3 2 1

GRADE recommendation 100 37 50 80 3 1 1

Grading 10 9 19 17

Levels of evidence 100 100 100 100 100 100 100

Levels of evidence and strengths of recommendation

100 59 90 100 100 100 14

Unique visitors 6 year trend (2006-2011): 100,000; 35,000 new visitor in 2011 vs. 2010

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…from these countries in 2011

651,000 unique visitors in 2011 from 165 countries

…and these cities

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Site uptime

Incidental reports from Norway of site being down in summer of 2010

Site uptime now monitored externally since Aug 2010 73 weeks monitored up to January 2012 Value compared to reference standard: Google

• Average uptime: 99.70% (GRADE) vs. 99.76% (Google)• Average 0.5 hrs downtime / single week• 51/73 weeks 100% uptime

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Membership

308 members covering 32 countries:• Australia, Austria, Bahrain, Brazil, Canada, China, Costa Rica,

Denmark, Egypt, Finland, France, Germany, Hungary, India, Italy, Japan, Mexico, New Zealand, Norway, Poland, Portugal, Saudi Arabia, South Africa, Spain, Sweden, Switzerland, The Netherlands, The Philippines, Turkey, UK, Uganda, USA

• 2011: + 76• 2010: + 28• 2009: + 60• 2008: + 27• 2007: + 30

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Organizations

64 organizations covering 14 countries (another 30+ organizations interested / pending):

• Austria, Canada, Finland, Germany, Italy, Japan, Mexico, Norway, Poland, Spain, Sweden, The Netherlands, UK, USA, plus International Organizations

• 2011: + 11• 2010: + 13• 2009: + 9• 2008: + 3• 2007: + 14• 2006: + 9• 2005: 5

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Organizations

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2005 2006 2007 2008 2009 2010 2011