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Table 2 Consensus across different rating scales

From: Comparison of different rating scales for the use in Delphi studies: different scales lead to different consensus and show different test-retest reliability

Treatment goal: top category Consensus on specific treatment goals
1st survey 2nd survey
three-point scale five-point scale* nine-point scale* three-point scale five-point scale* nine-point scale*
preventing secondary impairments 82.8 69.0 90.8 85.1 70.1 89.7
duration of hospitalization 52.9 36.8 64.4 48.3 39.1 62.1
stability 94.3 79.3 97.7 96.6 81.6 96.6
pain 89.7 79.3 95.4 95.4 79.3 94.3
implant survival 79.3 75.9 89.7 86.2 73.6 83.9
quality of life 87.4 73.6 97.7 89.7 74.7 90.8
range of motion (ROM) 92.0 80.5 96.6 93.1 79.3 96.6
activity of daily life 86.2 78.2 94.3 89.7 77.0 88.5
malalignment 66.7 47.1 72.4 63.2 46.0 72.4
strength 79.3 60.9 93.1 80.5 65.5 92.0
employability 54.0 35.6 64.4 56.3 47.1 65.5
walking stairs 86.2 74.7 92.0 89.7 77.0 89.7
walking distance 93.1 75.9 96.6 92.0 75.9 94.3
no side effects 78.2 67.8 83.9 74.7 71.3 82.8
participation in social life 82.8 65.5 89.7 81.6 60.9 87.4
sex life 20.7 17.2 31.0 19.5 20.7 29.9
physical function 83.9 64.4 90.8 85.1 70.1 93.1
physical activity 71.3 59.8 88.5 70.1 70.1 80.5
global health status 90.8 73.6 94.3 89.7 79.3 92.0
Consensus threshold Number of treatment goals that reached the threshold
1st survey 2nd survey
three-point scale (%) five-point scale* (%) nine-point scale* (%) three-point scale (%) five-point scale* (%) nine-point scale* (%)
>  60% 16 (84.2) 14 (73.7) 18 (94.7) 16 (84.2) 15 (78.9) 18 (94.7)
>  70% 15 (78.9) 9 (47.4) 16 (84.2) 15 (78.9) 13 (68.4) 16 (84.2)
>  75% 14 (73.7) 6 (31.6) 15 (78.9) 13 (68.4) 7 (36.8) 15 (78.9)
>  80% 11 (57.9) 1 (5.3) 15 (78.9) 13 (68.4) 1 (5.3) 15 (78.9)
>  90% 4 (21.0) 0 (0) 11 (57.9) 4 (21.0) 0 (0) 8 (42.1)
  1. The first part of the table shows the percentage of ratings as “main goal” of the 87 participants per survey across each treatment goal provided. The second part of the table shows the number and percentage of treatment goals that reached a certain level of consensus. In case of the three-point scale, the “main goal” is the top category. Five-point*/nine-point* scales: the top category of the five-point* scale, is “very important”, and for the nine-point* scale categories “9”, “8” and “7”