Discordance in Retinal and Choroidal Vascular Densities in Patients with Type 2 Diabetes Mellitus on Optical Coherence Tomography Angiography

Table 1

Clinical characteristics of study eyes.

Variables	Total eyes	No DR	NPDR	Severe NPDR	PDR	value
N	282	114	79	48	41
Age (years), mean ± SD	60.12 ± 12.17	59.16 ± 12.82	61.51 ± 11.47	59.31 ± 12.19	61.05 ± 11.73	0.537
Sex (male, n) (%)	160 (57)	152 (54)	166 (59)	168 (60)	152 (54)	0.778
DM duration (years)	9.67 ± 7.91	6.12 ± 6.33	10.59 ± 7.34	12.42 ± 6.92	14.51 ± 9.73	>0.001
HTN (n) (%)	160 (57)	147 (52)	178 (63)	149 (53)	200 (71)	0.084
CKD (n) (%)	37 (13)	28 (10)	54 (19)	42 (15)	20 (7)	0.175
BCVA (LogMAR), mean ± SD	0.13 ± 0.29	0.15 ± 0.33	0.09 ± 0.21	0.12 ± 0.28	0.18 ± 0.33	0.436
HbA1c (%), mean ± SD	7.19 ± 1.43	6.84 ± 1.37	7.49 ± 1.5	7.34 ± 1.41	7.39 ± 1.35	0.009
Glucose (mg/dL), mean ± SD	152.67 ± 60.66	147.13 ± 46.25	157.11 ± 71.28	156.06 ± 64.03	155.51 ± 70.23	0.658
CMT (um), mean ± SD	264.41 ± 43.24	262.96 ± 39.85	268.27 ± 42.2	268.35 ± 44.46	256.41 ± 52.3	0.467

DR: diabetic retinopathy; NPDR: nonproliferative diabetic retinopathy; PDR: proliferative diabetic retinopathy; SD: standard deviation; DM: diabetes mellitus; HTN: hypertension; CKD: chronic kidney disease; BCVA: best-corrected visual acuity; HbA1c: hemoglobin A1c; CMT: central macular thickness.Statistically significant value.P value for DM duration should be < 0.001.