Table 3.

ACL-RSI correlation with the results of instruments with similar constructs.

Instruments	rho (p)
QoL-overall	0.61 (<0.001)
TSK	−0.51 (<0.001)
IKDC	0.58 (<0.001)
SF-36 – physical functioning	0.44 (<0.001)
SF-36 – physical role functioning	0.21 (<0.03)
SF-36 – bodily pain	0.31 (<0.003)
SF-36 – general health perceptions	0.27 (<0.007)
SF-36 – vitality	0.34 (<0.001)
SF-36 – social role functioning	0.18 (<0.07)
SF-36 – emotional role functioning	0.16 (<0.2)
SF-36 – mental health	0.14 (<0.2)

Abbreviations: ACL-RSI, Anterior Cruciate Ligament-Return to Sport After Injury; QoL, quality of life; TSK, Tampa Scale for Kinesiophobia; IKDC, International Knee Documentation Committee; SF-36, Medical Outcomes Study 36-Item Short-Form Health.