Outer Retinal Layers’ Thickness Changes in relation to Age and Choroidal Thickness in Normal Eyes

Table 4

Multiple regression analysis of different factors affecting the thickness of 9 ETDRS subfields of RPE-OS and ONL-IS.

	Regression with age		Regression with gender		Regression with CT		Regression with refraction		Regression with axial length
	B-coefficient	value	B-coefficient	value	B-coefficient	value	B-coefficient	value	B-coefficient	value
RPE-OS
Central RPE-OS	−0.087	0.010	−0.664	0.355	0.001	0.879	0.691	0.218	0.213	0.838
Inner ring
Superior	−0.065	0.023	−1.059	0.088	−0.003	0.716	0.472	0.327	−0.304	0.729
Inferior	−0.060	0.031	−0.793	0.227	0.002	0.777	−0.067	0.895	0.926	0.319
Nasal	−0.032	0.297	−0.452	0.525	0.019	0.033	0.778	0.161	−0.561	0.578
Temporal	−0.033	0.256	−0.438	0.510	0.012	0.135	0.610	0.240	0.070	0.941
Outer ring
Superior	−0.070	0.011	−0.989	0.095	−0.005	0.547	0.658	0.158	0.088	0.918
Inferior	−0.064	0.007	−0.307	0.586	0.007	0.230	0.310	0.479	0.557	0.483
Nasal	−0.036	0.120	−0.284	0.641	0.031	<0.001	0.960	0.042	−1.107	0.196
Temporal	−0.039	0.128	−0.212	0.727	0.012	0.081	0.404	0.396	0.182	0.834
ONL-IS
Central ONL-IS	0.083	0.568	0.204	0.948	0.001	0.985	3.383	0.169	−5.519	0.227
Inner ring
Superior	0.022	0.753	−2.866	0.067	−0.001	0.939	0.112	0.926	−0.059	0.979
Inferior	0.090	0.211	−3.189	0.063	0.005	0.786	0.390	0.769	0.481	0.786
Nasal	−0.181	0.027	−4.218	0.029	−0.063	0.010	2.045	0.171	3.819	0.160
Temporal	0.127	0.075	−1.601	0.329	−0.016	0.418	−0.483	0.705	−1.234	0.597
Outer ring
Superior	0.037	0.604	−1.622	0.291	0.001	0.965	0.492	0.683	−0.320	0.884
Inferior	0.052	0.401	−2.344	0.119	−0.011	0.493	−0.063	0.957	1.685	0.424
Nasal	−0.023	0.721	−2.065	0.226	−0.029	0.174	0.241	0.854	−0.649	0.786
Temporal	0.116	0.085	−2.082	0.192	−0.001	0.943	−0.811	0.515	−0.368	0.943

CT: choroidal thickness. Bold numbers refer to statistically significant values.