Table 3

Correlation analysis of quantitative parameters in CHM

Correlation analysis
OPL_islet	Parameter	INL_islet	IPL_islet	RETINA_islet	ONL_atrophy	DCP_global	DCP_islet
	Tau coefficient	0.626	0.651	0.452	0.428	0.625	0.851
	P value	0.00039	0.00025	0.0097	0.015	0.00035	1.14E-06
INL_islet	Parameter	IPL_islet	RETINA_islet	CHOROID_islet	ONL_atrophy	DCP_global	DCP_islet
	Tau coefficient	0.493	0.576	0.399	0.42	0.563	0.735
	P value	0.005	0.0009	0.022	0.016	0.001	0.000025
IPL_islet	Parameter	CHOROID_islet	EZ-RPE_atrophy	ONL_atrophy	DCP_global	DCP_islet
	Tau coefficient	0.375	0.374	0.517	0.473	0.607
	P value	0.033	0.038	0.0033	0.007	0.0005
GCL_islet	Parameter	RETINA_islet
	Tau coefficient	0.361
	P value	0.039
RETINA_islet	Parameter	DCP_islet
	Tau coefficient	0.464
	P value	0.007
CHOROID_islet	Parameter	EZ-RPE_atrophy	RETINA_atrophy
	Tau coefficient	0.402	0.559
	P value	0.024	0.0013
ONL_atrophy	Parameter	DCP_global	DCP_islet
	Tau coefficient	0.48	0.507
	P value	0.006	0.003
OPL_atrophy	Parameter	CHOROID_atrophy
	Tau coefficient	0.374
	P value	0.035
INL_atrophy	Parameter	DCP_global	DCP_atrophy
	Tau coefficient	0.372	0.433
	P value	0.033	0.0133
RETINA_atrophy	Parameter	DCP_global	DCP_islet
	Tau coefficient	0.341	0.341
	P value	0.048	0.048
SCP_global	Parameter	SCP_islet	SCP_atrophy
	Tau coefficient	0.682	0.651
	P value	0.000013	0.006
DCP_global	Parameter	DCP_islet	DCP_atrophy
	Tau coefficient	0.686	0.367
	P value	0.00007	0.034
CC_global	Parameter	CC_islet
	Tau coefficient	0.724
	P value	0.00003

All the reported correlations proved statistically significant.
CC, choriocapillaris; CHM, choroideremia; DCP; deep capillary; EZ-RPE, ellipsoid zone–retinal pigment epithelium layer; GCL, ganglion cell layer; INL, inner nuclear layer; IPL, inner plexiform layer; ONL, outer nuclear layer; OPL, outer plexiform layer; SCP, superficial capillary.