Correlation analyses between macular parameters and other variables are shown in
Table 4. Macular thickness in the foveal, nasal outer, inferior outer, and temporal outer quadrants were significantly correlated with SER (Pearson correlation analysis;
P = 0.003, 0.035, 0.026, 0.003, respectively). Also, the average macular thickness and average macular volume were significantly correlated with SER (Pearson correlation analysis;
P = 0.003, 0.014, respectively). However, after adjustment for AL, age, and sex, only the macular thickness in nasal outer quadrant remained significantly correlated with SER (partial correlation analysis;
P = 0.004). Macular thickness in foveal, inferior outer, and temporal outer quadrants were significantly correlated with AL (Pearson correlation analysis;
P = 0.001, 0.004, 0.003, respectively). Also, the average macular thickness and average macular volume were significantly correlated with AL (Pearson correlation analysis;
P = 0.001, 0.008, respectively). However, after adjustment for SER, age, and sex, no correlations between macular thickness/volume and AL remained significant. Significant correlations between macular thickness and age were detected in foveal and superior inner and nasal inner quadrants (Pearson correlation analysis;
P = 0.007, 0.050, 0.011); after adjustment for SER, AL, and sex, the correlations in the superior inner and nasal inner quadrants remained significant (partial correlation analysis;
P = 0.039, 0.031, respectively). There were significant correlations between macular thickness and sex in fovea, all four quadrants of the inner ring and the temporal outer quadrant (Pearson correlation analysis;
P = <0.001, 0.011, 0.039, 0.001, <0.001, and 0.010, respectively), and significant correlations were indentified after adjustment for SER, AL, and age, with the exception of the nasal inner quadrant (partial correlation analysis;
P = 0.001, 0.012, 0.002, 0.001, and 0.003, respectively).