Table 2 Quantitative measurement of blood flow in the SCP, DCP, and CCFDs, categorized by age group.

From: Quantitative assessment of age-related retinal and choriocapillaris blood flow changes in a healthy Korean population using optical coherence tomography angiography

Age groups

20s

30s

40s

50s

60s

70s

80s

Eyes (n)

57

37

42

44

76

76

19

SCP (%)

37.3 ± 0.9

37.2 ± 1.1

(p = 0.674)

37.0 ± 1.2

(p = 0.181)

36.7 ± 1.4

(p = 0.018)

36.6 ± 1.3

(p < 0.001)

36.2 ± 1.4

(p < 0.001)

35.6 ± 2.1

(p = 0.003)

DCP (%)

26.2 ± 2.4

25.7 ± 1.9

(p = 0.328)

26.7 ± 2.0

(p = 0.265)

26.5 ± 2.5

(p = 0.549)

27.2 ± 2.2

(p = 0.010)

27.7 ± 2.1

(p < 0.001)

28.5 ± 2.2

(p < 0.001)

CCFD (%)

17.7 ± 2.7

19.1 ± 3.1

(p = 0.021)

22.0 ± 3.7

(p < 0.001)

23.0 ± 3.4

(p < 0.001)

25.0 ± 3.5

(p < 0.001)

27.6 ± 4.0

(p < 0.001)

29.3 ± 3.2

(p < 0.001)

  1. Significant values are in [bold].
  2. The 20s age group was used as the reference standard for assessing changes in other age groups.
  3. Data are presented as the mean (SD) or number of patients (n). *A value of p < 0.05 was considered statistically significant.
  4. Age groups were defined as follows: 20s (≤ 29 years), 30s (30–39), 40s (40–49), 50s (50–59), 60s (60–69), 70s (70–79), and 80s (80–89). SCP, Superficial Capillary Plexus; DCP, Deep Capillary Plexus; CCFDs, Choriocapillaris Flow Deficits.
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