Table 1 Demographics and baseline clinical characteristics by age at the diagnosis of VTDR
Total (n = 736) | ≤ 45 years (n = 144) | > 45 years (n = 592) | P | |
|---|---|---|---|---|
Age, year | 55.3 (48.0,64.0) | 37.5 (33.0,42.0) | 59.0 (54.0,65.0) | < 0.001* |
Male gender | 424 (57.6) | 94 (65.3) | 330 (55.7) | 0.038* |
Duration of diabetes, year | 15.1 (10,20) | 10.0 (5.0,15.0) | 16.0 (10.0,23.0) | < 0.001* |
College school or higher | 64 (8.7) | 42 (29.2) | 22 (3.7) | < 0.001* |
Axial length, mm | 23.34 (22.5,23.9) | 23.9 (23.1,24.9) | 23.0 (22.4,23.7) | < 0.001* |
Refractive Error, diopter | − 0.9 (− 0.5,0.0) | − 2.1 (− 4.0,0.0) | − 0.6 (0.0,0.0) | < 0.001* |
Type of diabetes | <0.001* | |||
Type 1 diabetes | 44 (6.0) | 32 (22.2) | 12 (2.0) | |
Type 2 diabetes | 692 (94.0) | 112 (77.8) | 580 (98.0) | |
HbAlc, % | 7.7 (7.0,8.0) | 7.6 (6.7,8.0) | 7.7 (7.0,8.0) | 0.092 |
SBP, mmHg | 133.5 (122,143) | 125.5 (115.0,140.0) | 133.5 (124.0,145.0) | < 0.001* |
DBP, mmHg | 79.6 (74.0,85.8) | 81.7 (75.0,89.8) | 79.1 (73.0,85.0) | < 0.001* |
LDL, mmol/L | 2.7 (2.1,3.1) | 2.7 (2.0,3.2) | 2.8 (2.1,3.1) | 0.867 |
BMI, kg/m2 | 24.2 (21.9,26.0) | 24.8 (22.4,27.6) | 23.9 (21.7,25.7) | < 0.001* |
With diabetic nephropathy | 422 (57.3) | 84 (58.3) | 338 (57.1) | 0.788 |
Current smoker | 236 (32.1) | 52 (36.1) | 184 (31.1) | 0.246 |