Figure 3. Predictor effect plot for Tinnitus Handicap Inventory
(THI) score obtained from the linear model and analysis of variance Wald
test.
The following predictive variables for THI were statistically
significant: sex (p < 0.01), pure-tone average (PTA; p =
0.03), overall Spanish Tinnitus
Functional Inventory (Sp-TFI) score (p = 0.02), and Sp-TFI Sleep (SL),
Relaxation (R) and Auditory (A) subscale scores (p = 0.03, p = 0.03 and
p < 0.01 respectively). The blue lines are the regression
lines between the variables, and the areas shaded blue indicate the
confidence band (95% confidence intervals).