Assessment of the effect of age on macular layer thickness in a healthy Chinese cohort using spectral-domain optical coherence tomography

Table 4 Correlations of Age with Thickness of Macular Retinal Layers in Sectors of the Pericentral ring

Retinal Layer	Pericentral Superior				Pericentral Nasal				Pericentral Inferior				Pericentral Temporal
Retinal Layer	P Value^a	Correlation^a	P Value^b	Beta^b	P Value^a	Correlation^a	P Value^b	Beta^b	P Value^a	Correlation^a	P Value^b	Beta^b	P Value^a	Correlation^a	P Value^b	Beta^b
RT	< 0.01^c	− 0.27	< 0.01^c	− 0.24	<.01^c	−.21	< 0.01^c	− 0.16	< 0.01^c	−.26	<.01^c	−.23	<.01^c	− 0.25	< 0.01^c	− 0.19
RNFL	0.72	− 0.02	0.51	− 0.03	0.74	0.01	0.66	0.02	0.17	−0.06	0.27	−0.05	< 0.01^c	0.24	< 0.01^c	0.31
GCL	< 0.01^c	− 0.31	< 0.01^c	− 0.32	< 0.01^c	− 0.24	< 0.01^c	− 0.24	< 0.01^c	− 0.32	< 0.01^c	− 0.34	< 0.01^c	− 0.35	< 0.01^c	− 0.37
IPL	< 0.01^c	− 0.37	< 0.01^c	− 0.39	< 0.01^c	− 0.33	< 0.01^c	− 0.33	< 0.01^c	− 0.36	< 0.01^c	− 0.37	< 0.01^c	− 0.28	< 0.01^c	− 0.29
INL	0.60	− 0.02	0.20	0.06	< 0.01^c	0.18	< 0.01^c	0.27	0.29	− 0.05	0.75	− 0.01	0.08	−0.08	1.00	0.00
OPL	0.63	0.02	0.08	0.08	< 0.01^c	0.18	< 0.01^c	0.19	0.49	0.03	0.85	−0.01	< 0.01^c	− 0.13	< 0.01^c	− 0.19
ONL	< 0.01^c	− 0.13	< 0.01^c	− 0.14	< 0.01^c	− 0.28	< 0.01^c	− 0.26	0.01^c	− 0.11	0.36	−0.04	0.27	−0.05	0.39	0.04
PRL + RPE	0.16	0.06	0.31	0.01	0.91	−0.01	0.64	0.02	0.76	0.01	0.40	0.04	0.18	0.06	0.32	0.09
RPE	< 0.01^c	0.19	< 0.01^c	0.23	0.01^c	0.12	0.01^c	0.11	<.01^c	.18	<.01^c	0.23	< 0.01^c	0.20	< 0.01^c	0.21

Abbreviations: RT Retinal thickness, RNFL Retinal nerve fiber layer, GCL Ganglion cell layer, IPL Inner plexiform layer, INL Inner nuclear layer, OPL Outer plexiform layer, ONL Outer nuclear layer, PRL Photoreceptor layer, RPE Retinal pigment epithelium; IOP, Intraocular pressure
^aPartial correlation coefficient after adjusting for spherical equivalent and IOP
^bSimple linear regression analysis
^cStatistically significant

ISSN: 1471-2415