Table 2 Intra- and inter-visit repeatability of RVD in healthy subjects and low teens-NTG.

From: Diurnal change of retinal vessel density related to hemodynamic variation in treatment-naïve low-teens normal-tension glaucoma

 

Intra-visit repeatability

Inter-visit repeatability

ICC (lower–upper 95% CI)

ICC (lower–upper 95% CI)

Total subjects

Healthy subjects

Low teens-NTG

P-value*

Total subjects

Healthy subjects

Low teens-NTG

P-value*

Peripapillary RVD

ONH

0.936 (0.836–0.981)

0.924

0.957

0.511

0.755 (0.671–0.947)

0.714

0.827

0.206

pSuperior

0.948 (0.737–0.994)

0.914

0.967

0.456

0.898 (0.867–0.922)

0.865

0.925

0.535

pInferior

0.933 (0.827–0.980)

0.949

0.922

0.627

0.911 (0.705–0.982)

0.963

0.853

0.408

pNasal

0.835 (0.617–0.948)

0.865

0.797

0.225

0.833 (0.637–0.964)

0.842

0.935

0.478

pTemporal

0.874 (0.746–0.986)

0.884

0.870

0.258

0.844 (0.730–0.923)

0.876

0.812

0.400

Macular RVD

Fovea

0.948 (0.737–0.994)

0.914

0.967

0.456

0.851(0.740–0.927)

0.884

0.821

0.198

mSuperior

0.947 (0.913–0.980)

0.956

0.967

0.598

0.898 (0.786–0.965)

0.914

0.877

0.306

mInferior

0.863 (0.822–0.896)

0.874

0.855

0.478

0.882 (0.704–0.987)

0.866

0.942

0.274

mNasal

0.890 (0.858–0.916)

0.914

0.879

0.104

0.806 (0.673–0.903)

0.832

0.794

0.258

mTemporal

0.907 (0.709–0.981)

0.914

0.899

0.627

0.825 (0.670–0.918)

0.842

0.805

0.188

  1. *As analyzed by repeated-measures ANOVA between Healthy and POAG groups, respectively.
  2. ICC = intraclass correlation coefficient; CI = coefficient interval; RVD = retinal vessel density; ONH = optic nerve head.
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