Table 4.
Basic and clinical characteristics of the 87 diabetic retinopathy patients (type 2 diabetes mellitus duration of < 3 years) and the 89 patients with no sign of diabetic retinopathy with a type 2 diabetes mellitus duration of > 20 years enrolled in the replication study
| Characteristics* | DR group | Non-DR group | P value |
|---|---|---|---|
| Number | 87 | 89 | / |
| Sex (male) | 38 | 34 | 0.54 |
| Age (year) | 66.55 ± 8.27 | 74.60 ± 8.80 | 0.00 |
| Age at DM onset (year) | 64.45 ± 8.12 | 48.40 ± 9.17 | 0.00 |
| DM duration (year) | 2.10 ± 0.95 | 26.19 ± 4.17 | 0.00 |
| Blood glucose (mmol/L) | 7.48 ± 2.44 | 7.93 ± 2.51 | 0.22 |
| HbA1c (%) | 7.02 ± 1.37 | 7.83 ± 1.36 | 0.00 |
| BMI (kg/m2) | 25.31 ± 3.98 | 25.95 ± 7.03 | 0.46 |
| MAP(mmHg) | 101.65 ± 14.23 | 96.61 ± 14.06 | 0.35 |
| SER (D) | 0.04 ± 2.14 | − 0.17 ± 2.22 | 0.67 |
| IOP (mmHg) | 13.72 ± 3.51 | 14.08 ± 3.83 | 0.53 |
| AL (mm) | 22.52 ± 4.44 | 22.63 ± 4.65 | 0.30 |
DR diabetic retinopathy, T2DM type 2 diabetes mellitus
*BMI body mass index; MAP (mmHg) mean arterial pressure, equal to (systolic pressure+ 2*diastolic pressure)/3; SER (D) spherical equivalent rate, equal to spherical power + 1/2 cylindrical power; IOP intraocular pressure; AL axial length