Table 1.
The basic and clinical characteristics of the 19 diabetic retinopathy patients (type 2 diabetes mellitus duration of < 3 years) and 21 patients with no sign of diabetic retinopathy with a type 2 diabetes mellitus duration of > 30 years enrolled in the discovery study
| Characteristics* | DR group | Non-DR group | P value# |
|---|---|---|---|
| Number | 19 | 21 | / |
| Sex (male) | 10 | 10 | 1 |
| Age (year) | 68.74 ± 8.69 | 74.19 ± 8.59 | 0.05 |
| Age of DM onset (year) | 67.26 ± 8.59 | 40.10 ± 9.13 | 0.00 |
| DM duration (year) | 1.47 ± 1.07 | 34.09 ± 5.74 | / |
| Blood glucose (mmol/L) | 6.95 ± 1.94 | 6.99 ± 2.22 | 0.93 |
| HbA1c (%) | 6.79 ± 1.26 | 7.53 ± 1.44 | 0.04 |
| BMI (kg/m2) | 25.30 ± 4.55 | 24.94 ± 3.33 | 0.94 |
| MAP (mmHg) | 102.98 ± 12.53 | 103.37 ± 13.45 | 0.93 |
| SER (D) | − 0.53 ± 2.06 | 0.17 ± 2.01 | 0.24 |
| IOP (mmHg) | 13.80 ± 4.24 | 15.02 ± 2.62 | 0.28 |
| AL (mm) | 23.23 ± 1.13 | 23.26 ± 0.86 | 0.93 |
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.
#X2 Chi-square test, t Student’s t test, Z Mann-Whitney test