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Table 1 Comparison of demographics, clinical features and subfoveal choroidal thickness in healthy controls (N), diabetic patients without diabetic retinopathy (D) and diabetic patients with diabetic retinopathy (R)

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

  Group ‘N’ (n = 100) Group ‘D’ (n = 100) P value Group ‘R’ (n = 100) P value (vs N) P value (vs D)
Age (years ± SD) 57.52 ± 14.30 59.73 ± 12.04 0.85 62.12 ± 7.59 0.14 0.10
Sex (M:F) 53:47 57:43 0.57 61:39 0.25 0.56
Duration of diabetes (years ± SD) 7.47 ± 6.17 14 ± 5.956 < 0.01*
Type of DM (1:2) 10:90 13:87 0.51
Hypertension (%, ratio) 24/100 30/100 0.33 26/100 0.74 0.53
Phakic: pseudophakic 85:15 71:29 0.27 81:19 0.45 0.09
Refractive status (dioptres) − 0.28 ± 0.58 − 0.30 ± 0.68 0.82 − 0.30 ± 0.44 1.0 1.0
SFCT (µm ± SD) 310.65 ± 37.34 308.48 ± 30.06 0.60 296.52 ± 21.41 < 0.01* < 0.01*
  1. N non-diabetic, D diabetic without diabetic retinopathy, R diabetic with diabetic retinopathy, SD standard deviation, M male, F female, DM diabetes mellitus, SFCT subfoveal choroidal thickness
  2. *Statistically significant