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Table 3 Demographics of participants at the Delphi-survey

From: Consensus of potential modifiable prognostic factors for persistent pain after a first episode of nonspecific idiopathic, non-traumatic neck pain: results of nominal group and Delphi technique approach

  Delphi-participants in Round 1 (185 eligible candidates invited, response N = 83, response rate 45%) Delphi-participants Round 2 (81 participants invited*, response N = 54, response rate 67%)
Gender Male = 56% Male = 59%
Female = 44% Female = 41%
Country of residence The Netherlands = 30 The Netherlands = 24
Belgium = 18 Belgium = 10
Saudi Arabia = 2 Saudi Arabia = 1
Canada = 5 Canada = 2
Australia = 3 Australia = 2
Sweden = 2 Sweden = 1
Switzerland = 3 Switzerland = 3
Brazil = 1 France = 1
France = 1 UK = 2
UK = 2 South – Africa = 1
South – Africa = 1 Italy = 1
Italy = 2 Thailand = 1
Thailand = 1 Spain = 1
Spain = 1 USA = 1
Norway = 1 Portugal = 1
USA = 1 New-Zealand = 1
Portugal = 2 Denmark = 1
New-Zealand = 1  
Denmark = 1  
Not given = 2  
Specialization Researcher, specialization neck or chronic pain = 42 Researcher, specialization neck or chronic pain = 26
Physiotherapist = 18 Physiotherapist = 14
Physiotherapist in Mental Health = 3 Physiotherapist in Mental Health = 2
Orthopedic Manual physiotherapist = 10 Orthopedic Manual physiotherapist = 7
Psychologist = 1 Epidemiologist = 6
Epidemiologist = 8  
Not given = 1  
  1. *Two participants did not leave their email address, therefore we could only invite 81 participants instead of the 83 responders in the first round