TABLE 2.

Healthy and COVID-19 Patients’ Comparison

	Healthy Controls (n=29)	COVID-19 at 1 mo (n=90)	P
Age	52.83±8.49	55.48±8.93	0.137*
Sex (females) n (%)	16 (55.2)	46 (51.1)	0.165†
Race (Caucasian) n (%)	29 (100)	59 (65)	0.001 †
AHT, n (%)	5 (17)	25 (27.8)	0.232†
DM, n (%)	2 (6.9)	8 (8.9)	1.0†
DL, n (%)	5 (17)	24 (26.7)	0.279†
Smoking, n (%)	1 (3.4)	15 (16.7)	0.088†
Visual acuity	0.88±0.14	0.76±0.16	0.005 *
External region VD (%)	47.57±33.13	44.93±1.49	0.789*
External region FI (ratio)	0.44±0.04	0.44±0.03	0.707*
Superior VD (%)	42.91±4.06	43.24±2.04	0.214*
Superior FI (ratio)	0.43±0.06	0.42±0.03	0.881*
Nasal VD (%)	45.69±2.56	45.78±2.62	0.680*
Nasal FI (ratio)	0.45±0.04	0.45±0.04	0.928*
Inferior VD (%)	45.02±2.67	45.14±2.84	0.547*
Inferior FI (ratio)	0.43±0.04	0.43±0.03	0.921*
Temporal VD (%)	45.27±2.75	45.43±2.68	0.0001 *
Temporal FI (ratio)	0.45±0.04	0.44±0.03	0.215*

All above measurements are represented by frequency or mean±SD and frequency.

Statistically significant differences are shown in bold values.

^*t Test.

^†χ² and the Fisher exact test.

AHT indicates arterial hypertension; DL, dyslipidemia; DM, diabetes mellitus; FI, flux index; VD, vessel density.