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Table 2 Feasibility assessment includes competition rankings, reported difficulty of each preference elicitation method

From: Testing the feasibility of eliciting preferences for health states from adolescents using direct methods

n = 144 Visual analogue scale
n (%)
Time trade-off
n (%)
Standard gamble
n (%)
Participants who completed all rankings 144 (100) 109 (76) 139 (97)
Difficulty of method
 Very easy 118 (82) 95 (66) 110 (76)
 Not too easy / Not too difficult 25 (17) 31 (22) 30 (21)
 Very difficult 1 (1) 6 (4) 3 (2)
 Missing 0 (0) 12 (8) 1 (1)
Needed help completing the method
 Yes 24 (17) 23 (16) 23 (16)
 No 119 (83) 109 (76) 120 (83)
 Missing 1 (1) 12 (8) 1 (1)
Who provided help
 Parent 13 (54) 9 (39) 7 (30)
 Sibling 1 (4) 5 (22) 5 (22)
 Friend 8 (33) 7 (30) 8 (35)
 Other 1 (4) 2 (9) 3 (13)
 Missing 1 (4) 0 (0) 0 (0)