Table 1 Characteristics of the hypothetical vignettes

1

35 year old patient with symptomatic ADLs

I

2

35 year old patient who can perform ADLs without symptoms but no kind of sports

II

3

35 year old patient with knee symptoms with mildly stressful sports (e.g. jogging, swimming, biking)

III

4

35 year old patient with knee symptoms with moderately stressful sports (e.g. baseball, alpine skiing, dance)

IV