Table 4 Univariate and multivariate linear regression for the association between clinical and anatomical parameters and coefficient of variation of vessel density.

From: Long-term repeatability of peripapillary optical coherence tomography angiography measurements in healthy eyes

 

Univariate analyses

Multivariate analyses

B (95% CI)

P value

B (95% CI)

P value

Age

− 0.052 (− 0.102, − 0.003)

0.039

− 0.013 (− 0.062, 0.036)

0.600

Sex

1.367 (− 0.367, 3.102)

0.121

  

Laterality

0.001 (− 1.759, 1.761)

0.999

  

BCVA

1.260 (− 19.817, 22.336)

0.906

  

Spherical equivalent

0.079 (− 0.305, 0.462)

0.684

  

Intraocular pressure

− 0.277 (− 0.582, 0.028)

0.074

  

Axial length

1.121 (0.554, 1.688)

< 0.001

0.970 (0.363, 1.576)

0.002

Interval between visits

0.042 (− 0.084, 0.168)

0.506

  

Mean SS

− 2.511 (− 3.570, − 1.452)

< 0.001

− 2.028 (− 3.137, − 0.918)

< 0.001

SS difference

1.806 (0.808, 2.804)

0.001

0.872 (− 0.105, 1.850)

0.080

Mean CMT

− 0.017 (− 0.057, 0.024)

0.415

  

Mean pRNFL thickness

0.019 (− 0.042, 0.080)

0.535

  

Mean GC-IPL thickness

− 0.127 (− 0.246, − 0.009)

0.036

0.004 (− 0.104, 0.112)

0.942

  1. CI confidence interval, BCVA best-corrected visual acuity, SS signal strength, CMT central macular thickness, pRNFL peripapillary retinal nerve fiber layer, GC-IPL ganglion cell-inner plexiform layer.
  2. Values with P < 0.05 are shown in bold.