Table 1 Comparison of the baseline characteristics between the two groups of patients

Sex

0.24

0.624^c

Male

30 (50.0%)

22 (55.0%)

Female

30 (50.0%)

18 (45.0%)

Age

56.37 ± 9.97

54.84 ± 8.04

0.810

0.420^a

LogMAR BCVA

0.52 (0.40, 0.70)

0.52 (0.30, 0.79)

885.500

0.776^b

Course of the DM (year)

10.00 (6.50, 10.00)

10.00 (5.50, 18.50)

1084.500

0.378^b

HbA_1c(%)

7.80 (7.30, 8.20)

7.40 (6.90, 7.80)

937.500

0.058^b

Creatine(µmol/L)

79.00 (68.50, 83.50)

77.00 (65.50, 92.50)

1088.000

0.398^b

Stage

0.123

0.726^c

PPDR

40 (66.7%)

28 (70.0%)

PDR

20 (33.3%)

12 (30.0%)