Table 1 Characteristics of the cohort.

From: Retinal and choriocapillaris perfusion are associated with ankle-brachial-pressure-index and Fontaine stage in peripheral arterial disease

 

Mean (range) ± SD or n (%)

p-value

Peripheral arterial disease

Controls

Age

67.94 ± 9.47 (46–89)

69.26 ± 10.31 (46–83)

0.33

Sex (male)

69 (71%)

16 (47%)

0.02

Best corrected visual acuity (LogMAR + rounded Snellen equivalent)

0.05 ± 0.07 (20/20)

0.03 ± 0.06 (20/20)

0.07

Central retinal thickness (μm)

279 ± 24.03

276 ± 20.10

0.91

Maximum Fontaine stage

I

59 (61%)

0

 

IIa

8 (8%)

0

 

IIb

26 (27%)

0

 

III

4 (4%)

0

 

IV

0

0

 

Lowest ankle-brachial-index

0.92 ± 0.32 (0.16–1.49)

–

 

OCT-A image quality (signal strength index)

9.57 ± 0.54 (8–10)

9.50 ± 0.66 (8–10)

0.79

History of smoking

31 (32%)

6 (18%)

0.13

  1. SD = standard deviation; OCT-A = optical coherence tomography angiogaphy; Student’s t-test, Wilcoxon rank sum test and Fisher’s exact test were used for statistical analysis.
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