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Table 2 Comparison of demographic and clinical features, and of subfoveal choroidal thickness in diabetic patients with non-proliferative and proliferative diabetic retinopathy

From: Change in subfoveal choroidal thickness in diabetes and in various grades of diabetic retinopathy

  NPDR (n = 64) PDR (n = 36) P value
Age (years ± SD) 63.61 ± 6.85 59.47 ± 8.20 < 0.01*
Sex (M:F) 45:19 16:20 0.01*
Duration of diabetes (years ± SD) 12.80 ± 5.36 16.14 ± 6.42 < 0.01*
Type of DM (1:2) 62:2 25:11 < 0.01*
Hypertension (%, ratio) 22/64 10/36 0.50
Phakic: pseudophakic 47:17 34:2 0.01*
Refractive status (dioptres) − 0.28 ± 0.58 − 0.30 ± 0.68 0.88
SFCT (µm ± SD) 303.25 ± 18.59 284.56 ± 21.09 < 0.01*
  1. NPDR non-proliferative diabetic retinopathy, PDR proliferative diabetic retinopathy, SD standard deviation, M male, F female, DM diabetes mellitus, SFCT subfoveal choroidal thickness
  2. *Statistically significant