Table 1

Demographical characteristics of the validation samples

Demographical groupsSample 1Sample 2Sample 3
Test–retest (N=73)Control (N=43)Intervention (N=40)Experts (N=35)
N%N%N%N%
Age
 18–24811000000
 25–342432.9000013.2
 35–441115.100001754.8
 45–541621.937251135.5
 55–641216.41023.3102526.5
 65 and over21.42455.8123000
 75–8400511.6143500
 85+11.411.22500
Gender
 Men27372046.5164025.7
 Women46632353.224603188.6
 Missing00000025.7
Ethnic origin
 White6994.52865.132803291.4
 Other ethnic backgrounds45.51534.982038.6
Marital status
 Married/civil partnership4764.41944.21537.52674.3
 Other2635.62455.83562.5925.7
Education
 Degree or above5879.51227.91332.53188.6
 Below degree1520.51944.21230411.4
 No formal qualifications001227.91537.500