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Table 3 Difference between autofluorescence signal ratios (R) measured by blue light and green light at the fovea (R1), hypoautofluorescent point (R2), and hyperautofluorescent point (R3)

From: Blue light versus green light fundus autofluorescence in normal subjects and in patients with retinochoroidopathy secondary to retinal and uveitic diseases

  Mean difference SD Sig. (p)
Difference between blue and green ratios: normal subjects (N = 39 images)
R1 Difference 0.72 0.90 0.000
R2 Difference 0.62 0.52 0.000
R3 Difference 3.10 2.81 0.000
Difference between blue and green ratios: patients (N = 80 images)
R1 Difference 0.73 1.09 0.000
R2 Difference 0.86 1.05 0.000
R3 Difference 4.76 6.56 0.000
  1. SD standard deviation