Table 6 Parameter estimates for MCIC of knee flexion using only reported supine knee flexion

Relationship between Δ pain-general with Δ supine-active flexion

 − 19.9 (CI − 21.6 to − 17.9) (Tubach et al., 2005a)

12.8

 − 0.0, 26.3

Relationship between Δ pain during activity with Δ pooled-supine flexion

 − 19.9 (CI − 21.6 to − 17.9) (Tubach et al., 2005a)

1.7

 − 0.5, 4.1

Relationship between Δ pain-general with Δ pooled-supine flexion

 − 19.9 (CI − 21.6 to − 17.9a) (Tubach et al., 2005)

11.3

2.4, 20.1