Table 6.

Stepwise multiple regression analysis by the forward method of quality of life score (dependent variable Y) in relation to vision test scores and age (independent variables X₁ to X₆) in 132 patients with uveitis

X selected	R	R2	F	SSEx
HCVA binocular	0.28	0.08	11.24*	8%
Age	0.39	0.15	11.98**	7%

Independent variables: high contrast visual acuity best eye (X₁), high contrast visual acuity worst eye (X₂), binocular high contrast visual acuity (HCVA binocular, X₃), binocular low contrast visual acuity (X₄), binocular contrast sensitivity (X₅), and age (X₆).

R = multiple regression coefficient, F = variance ratio, SS_Ex = percentage of the variance in Y associated with or explained by each X variable; *p<0.01, **p<0.001.