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Table 3 Dynamic arterial and venous vessel parameters

From: Retinal vessel diameters and reactivity in diabetes mellitus and/or cardiovascular disease

  DM (n = 36) CVD (n = 43) DM and CVD (n = 37) p value
Arterial parameters
 ASIZE (µm) 110 (16) 113 (20) 116 (18) 0.294
 BDF (%) 1.66 (0.81)* 2.59 (1.95) 2.38 (1.38) 0.019
 MD (%) 2.99 (2.23) 2.88 (2.29) 2.60 (1.68) 0.705
 MC (%) −1.45 (0.87)** −2.06 (1.50) −2.17 (1.52) 0.030
 RT (s) 18 (11) 20 (12) 20 (12) 0.679
 CT (s) 40 (10) 38 (8) 40 (7) 0.531
Venous parameters
 Vsize (µm) 141 (20) 141 (19) 142 (18) 0.927
 BDF (%) 1.91 (0.88) 2.53 (2.09) 2.45 (1.52) 0.192
 MD (%) 4.34 (1.85) 4.28 (1.96) 4.16 (2.24) 0.928
 MC (%) −0.80 (1.20) −0.79 (1.53) −0.72 (1.15) 0.963
 DA (%) 5.14 (2.25) 5.07 (2.22) 4.88 (2.64) 0.892
 RT (s) 21 (9) 20 (4) 21 (7) 0.972
  1. Retinal vessel reactivity parameters as calculated using sequential diameter response analysis (SDRA)
  2. Data presented as mean (standard deviation) or median (inter quartile range)
  3. All values given in percentage change to baseline vessel diameters or times in seconds
  4. BDF baseline diameter fluctuation, MD maximum dilation, MC maximum constriction, DA dilation amplitude, RT reaction time, CT constriction time, s seconds
  5. p values by analysis of variance (ANOVA)
  6. * Different compared to CVD group (p < 0.05)
  7. ** Different compared to CVD and DM group (p < 0.05)