Table 5 Univariate analysis of optical coherence tomography angiography parameters with number of MS episodes.

From: Microvascular changes in the macular and parafoveal areas of multiple sclerosis patients without optic neuritis

OCTA metrics

β

95% CI

P value*

Perfusion density (%)

SCP

0.04

− 0.06 to 0.14

0.449

SCP w/o LV

0.05

− 0.05 to 0.15

0.304

LV

− 0.01

− 0.03 to 0.02

0.760

DCP

0.02

− 0.10 to 0.15

0.743

Foveal avascular zone at superficial layer

Area (mm2)

0.01

− 0.01 to 0.01

0.717

Circularity

− 0.01

− 0.01 to 0.01

0.663

Foveal avascular zone at deep layer

Area (mm2)

0.01

− 0.01 to 0.01

0.964

Circularity

− 0.01

− 0.01 to 0.01

0.390

Flow deficit (%)

Choriocapillaris

− 0.01

− 0.05 to 0.03

0.717

  1. CI confidence interval, DCP deep capillary plexus, LV large vessels, OCTA optical coherence tomography angiography, SCP superficial capillary plexus.