Table 4.

Multiple linear regression model with the quality of life (AQoL-6D) as the dependent variable

Variables retained in the model	Standardized β weight	P value	R2
FAAM-ADL	0.819	< 0.001	0.657
Age	0.067	0.087
Variables not retained in the model			Change in R2
Ankle stiffness	0.021	0.732	0.00
FAAM-Sport	−0.055	0.583	0.00
AOS-Pain	−0.085	0.301	−0.002
Sex	−0.044	0.265	−0.002
BMI	−0.062	0.159	−0.003
Group	0.089	0.138	−0.003
CAIT	0.060	0.372	−0.001

Abbreviations: p-value/significance level; AOS Ankle osteoarthritis scale; FAAM Foot and Ankle Ability Measure; ADL Actvitiesof daily living; AQoL-6D The Assessment of Quality of Life; BMI Body mass index; CAIT The Cumberland Ankle Instability Tool