Table 5 Macular sectors’ (ETDRS regions) thickness differences among diagnostic groups.

Group (N)	Mean	SD	Mean^aa	SEM
ETDRS Center p = 0.735
Control (414)	247.82	22.52	246.29^aa	1.48
MCI (192)	246.76	25.59	246.89^aa	1.91
AD (324)	243.19	30.03	245.08^aa	1.61
ETDRS Inner-Temporal p = 0.125
Control (414)	299.92	16.03	296.04^aa	1.10
MCI (192)	293.86	19.97	295.30^aa	1.42
AD (324)	288.50	23.59	292.70^aa	1.20
ETDRS Inner-Superior p = 0.040
Control (414)	312.45	16.22	307.81^aa	1.12
MCI (192)	306.04	20.08	308.21^aa	1.44
AD (324)	299.45	24.29	304.12^aa	1.22
ETDRS Inner-Nasal p = 0.040
Control (414)	313.25	17.30	309.43^aa	1.14
MCI (192)	306.00	21.21	307.53^aa	1.47
AD (324)	300.75	23.35	304.74^aa	1.24
ETDRS Inner-Inferior p = 0.095
Control (414)	309.88	16.22	305.44^aa	1.12
MCI (192)	303.72	20.36	305,70^aa	1.44
AD (324)	297.71	24.06	302.24^aa	1.22
ETDRS Outer-Temporal p = 0.683
Control (414)	252.95	16.95	249.78^aa	1.05
MCI (192)	248.50	18.13	249.81^aa	1.35
AD (324)	245.24	20.85	248.54^aa	1.14
ETDRS Outer-Superior p = 0.306
Control (414)	268.68	14.84	264.59^aa	0.94
MCI (192)	264.31	17.20	266.51^aa	1.24
AD (324)	260.31	20.01	264.25^aa	1.05
ETDRS Outer-Nasal p = 0.397
Control (414)	285.41	17.711	281.18^aa	1.04
MCI (192)	281.28	18.226	283.61^aa	1.34
AD (324)	278.55	20.230	282.60^aa	1.13
ETDRS Outer-Inferior p = 0.819
Control (414)	258.07	14.391	254.62^aa	0.95
MCI (192)	253.72	16.979	255.57^aa	1.23
AD (324)	251.43	19.813	254.78^aa	1.04

Different raw and adjusted macular thickness (μm), standard deviation (SD), and standard error of the mean (SEM). After a multivariate adjustment, significant differences between diagnostic groups have appeared in the superior and nasal areas of the inner ring. After a correction for multiple comparisons, no significant differences among diagnostic groups were detected. Dispersion is shown as SEM.

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