Table 2.

SS-OCTA evaluated the deep vascular complex with different radii centered on the macular fovea in control eyes, PDR eyes, NPDR eyes (mean ± SD, p-value).

Variable	Radii	Control	PDR	NPDR	Control vs. PDR	Control vs. NPDR	PDR vs. NPDR
VD		n = 51	n = 52	n = 46	(p/t value)	(p/t value)	(p/t value)
	3 ×3 mm	53.85 ± 3.81	36.94 ± 11.86	45.84 ± 9.70	0.000***/9.781	0.000***/5.250	0.000***/−4.083
	6 ×6 mm	54.63 ± 3.53	38.85 ± 8.88	45.61 ± 8.08	0.000***/11.892	0.000***/6.993	0.000***/−3.941
	9 ×9 mm	46.34 ± 4.16	33.99 ± 7.47	38.19 ± 7.47	0.000***/10.605	0.000***/6.425	0.006**/−2.784
	12 ×12 mm	42.49 ± 3.47	30.01 ± 4.59	33.36 ± 6.64	0.000***/14.664	0.000***/7.859	0.009**/−2.671
	6–3 mm2	−0.78 ± 3.01	1.91 ± 6.13	0.23 ± 6.30	0.235/−1.191	0.596/0.55	0.185/1.336
	9–6 mm2	8.29 ± 2.52	4.87 ± 4.52	9.08 ± 8.22	0.000***/4.765	0.536/−0.651	0.002**/−3.089
PD		n = 51	n = 53	n = 70	(p/t value)	(p/t value)	(p/t value)
	3 × 3 mm	3.12 ± 0.24	2.14 ± 0.66	2.42 ± 0.61	0.000***/10.071	0.000***/8.805	0.019*/−2.356
	6 ×6 mm	12.80 ± 0.89	9.39 ± 2.14	10.09 ± 2.04	0.000***/10.679	0.000***/9.902	0.068/−1.845
	9 ×9 mm	25.58 ± 2.04	19.51 ± 4.05	20.29 ± 3.96	0.000***/9.496	0.000***/9.487	0.299/−1.044
	12 ×12 mm	41.56 ± 2.82	31.39 ± 4.84	32.31 ± 6.06	0.000***/12.292	0.000***/10.778	0.405/−0.837
	6–3 mm2	9.68 ± 0.73	7.24 ± 1.55	7.67 ± 1.53	0.000***/10.298	0.000***/9.592	0.131/−1.521
	9–6 mm2	12.79 ± 1.36	10.13 ± 2.39	9.62 ± 3.93	0.000***/7.014	0.000***/6.237	0.410/0.828
RT		n = 51	n = 53	n = 70	(p/t value)	(p/t value)	(p/t value)
	3 ×3 mm	323.01 ± 16.03	398.71 ± 132.65	361.49 ± 66.14	0.000***/−4.123	0.000***/−4.683	0.065/2.038
	6 ×6 mm	298.10 ± 14.05	380.01 ± 98.86	337.68 ± 55.08	0.000***/−5.969	0.000***/−5.759	0.006**/2.805
	9 ×9 mm	279.22 ± 13.32	357.07 ± 93.38	309.68 ± 46.48	0.000***/−6.006	0.000***/−5.13	0.001***/3.383
	12 ×12 mm	263.31 ± 11.77	326.14 ± 74.85	287.96 ± 42.34	0.000***/−5.568	0.000***/−4.437	0.003**/3.092
	6–3 mm2	24.90 ± 7.03	18.7 ± 55.93	23.82 ± 24.99	0.427/0.786	0.731/0.301	0.537/−0.682
	9–6 mm2	18.88 ± 4.32	22.94 ± 22.8	36.85 ± 65.61	0.209/−1.248	0.025*/−2.284	0.143/−1.476

^*p ≤ 0.05, there is a statistical difference;

^**p ≤ 0.01,

^***p ≤ 0.001, there is a significant difference.