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)
| 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* |
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
*Statistically significant