Macular Retinal Vessel Oxygen Saturation Elevation in Chinese Central Serous Chorioretinopathy

Table 3

Comparison of oxygen saturation and vessel diameter of the affected eyes between acute and chronic CSC patients.

	Variables	Acute CSC	Chronic CSC	Statistical method	value
AS (%)	Overall	97.1 ± 7.8	95.7 ± 5.8	Unpaired t-test	0.565
	NS	100.5 ± 7.3	102.3 ± 9.0	Unpaired t-test	0.526
	NI	97.5 ± 11.8	98.7 ± 7.3	Unpaired t-test	0.746
	TI	94.4 ± 10.4	91.3 ± 10.0	Mann–Whitney U test	0.461
	TS	94.8 ± 9.5	94.1 ± 5.2	Mann–Whitney U test	0.854
	Macular region	94.5 ± 8.0	92.3 ± 7.5	Unpaired t-test	0.444
VS (%)	Overall	59.9 ± 6.7	62.4 ± 5.1	Unpaired t-test	0.248
	NS	62.2 ± 7.6	62.6 ± 6.7	Unpaired t-test	0.884
	NI	60.9 ± 7.7	61.8 ± 7.0	Unpaired t-test	0.735
	TI	52.4 ± 10.5	54.9 ± 4.7	Mann–Whitney U test	0.507
	TS	61.2 ± 5.7	60.9 ± 12.5	Mann–Whitney U test	0.883
	Macular region	62.2 ± 8.5	60.8 ± 5.7	Unpaired t-test	0.609
AVS (%)	Overall	37.3 ± 6.4	33.2 ± 6.2	Unpaired t-test	0.083
	NS	38.2 ± 6.6	39.7 ± 12.6	Unpaired t-test	0.854
	NI	36.6 ± 9.3	36.9 ± 12.4	Mann–Whitney U test	0.938
	TI	42.0 ± 11.9	36.4 ± 7.8	Unpaired t-test	0.145
	TS	33.6 ± 8.8	33.2 ± 13.4	Mann–Whitney U test	0.658
	Macular region	32.3 ± 10.1	31.5 ± 7.1	Unpaired t-test	0.813
AD (pixel)	Overall	13.2 ± 1.3	12.6 ± 1.0	Unpaired t-test	0.107
	NS	12.8 ± 1.6	12.8 ± 2.2	Unpaired t-test	0.886
	NI	12.8 ± 1.9	12.0 ± 1.7	Unpaired t-test	0.233
	TI	14.1 ± 2.7	13.4 ± 2.1	Unpaired t-test	0.450
	TS	13.8 ± 2.2	12.7 ± 1.5	Unpaired t-test	0.116
	Macular region	13.2 ± 1.3	12.8 ± 1.6	Unpaired t-test	0.373
VD (pixel)	Overall	17.6 ± 1.5	16.8 ± 1.2	Unpaired t-test	0.152
	NS	17.1 ± 2.1	17.2 ± 2.2	Unpaired t-test	0.877
	NI	16.0 ± 3.0	15.6 ± 2.8	Unpaired t-test	0.731
	TI	20.3 ± 2.8	19.3 ± 2.1	Unpaired t-test	0.289
	TS	18.0 ± 2.4	18.1 ± 3.1	Unpaired t-test	0.874
	Macular region	15.8 ± 2.0	16.1 ± 1.9	Unpaired t-test	0.625