Macular Retinal Vessel Oxygen Saturation Elevation in Chinese Central Serous Chorioretinopathy

Table 4

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

	Variables	Acute CSC	Chronic CSC	Statistical method	value
AS (%)	Overall	95.9 ± 6.6	94.6 ± 7.0	Unpaired t-test	0.591
	NS	98.4 ± 7.0	99.7 ± 9.7	Unpaired t-test	0.660
	NI	98.5 ± 11.3	98.5 ± 12.4	Unpaired t-test	0.992
	TI	88.4 ± 8.1	89.2 ± 7.5	Unpaired t-test	0.764
	TS	94.0 ± 6.6	91.7 ± 5.4	Unpaired t-test	0.300
	Macular region	90.1 ± 5.3	88.6 ± 8.0	Mann–Whitney U test	0.397
VS (%)	Overall	59.3 ± 7.2	58.2 ± 4.9	Unpaired t-test	0.645
	NS	62.0 ± 9.0	59.4 ± 4.5	Mann–Whitney U test	0.418
	NI	58.0 ± 6.8	55.4 ± 6.0	Mann–Whitney U test	0.269
	TI	52.8 ± 9.0	52.7 ± 9.4	Unpaired t-test	0.996
	TS	62.5 ± 9.1	59.5 ± 7.7	Mann–Whitney U test	0.357
	Macular region	60.2 ± 7.4	57.5 ± 8.9	Unpaired t-test	0.339
AVS (%)	Overall	36.7 ± 5.8	36.4 ± 7.3	Unpaired t-test	0.914
	NS	36.4 ± 8.7	40.2 ± 10.9	Unpaired t-test	0.269
	NI	40.5 ± 10.4	43.1 ± 12.5	Unpaired t-test	0.520
	TI	35.6 ± 9.0	36.5 ± 11.6	Unpaired t-test	0.812
	TS	31.5 ± 8.7	32.1 ± 8.6	Mann–Whitney U test	0.685
	Macular region	29.9 ± 8.4	31.2 ± 9.1	Unpaired t-test	0.685
AD (pixel)	Overall	13.0 ± 1.2	13.1 ± 1.4	Unpaired t-test	0.838
	NS	12.8 ± 1.7	13.3 ± 2.1	Unpaired t-test	0.385
	NI	12.9 ± 1.8	12.4 ± 1.5	Unpaired t-test	0.433
	TI	14.2 ± 2.5	13.1 ± 2.5	Mann–Whitney U test	0.185
	TS	13.9 ± 1.7	14.8 ± 2.4	Unpaired t-test	0.218
	Macular region	13.0 ± 1.5	12.7 ± 1.8	Unpaired t-test	0.595
VD (pixel)	Overall	16.7 ± 1.6	17.0 ± 1.9	Unpaired t-test	0.598
	NS	16.8 ± 2.2	16.6 ± 2.4	Unpaired t-test	0.780
	NI	15.7 ± 2.5	16.7 ± 3.1	Mann–Whitney U test	0.377
	TI	18.1 ± 3.3	18.1 ± 3.8	Unpaired t-test	0.973
	TS	16.5 ± 2.9	17.9 ± 2.7	Unpaired t-test	0.182
	Macular region	14.9 ± 2.8	16.3 ± 2.3	Unpaired t-test	0.131