Table 1 General characteristics of the DM patients.

From: Distribution of diabetic retinopathy in diabetes mellitus patients and its association rules with other eye diseases

 

DR (n = 580)

NDR (n = 704)

t/χ2

P

Age (years old)

58.11 ± 10.91

65.62 ± 11.79

11.737

< 0.001

Ratio of optic cup to optic disc

0.49 ± 0.23

0.45 ± 0.17

3.618

< 0.001

Vision

0.52 ± 0.36

0.58 ± 0.36

2.631

0.009

Intraocular pressure of right eye (mmHg)

17.58 ± 6.75

17.19 ± 5.23

1.029

0.304

Intraocular pressure of left eye (mmHg)

17.24 ± 6.46

17.31 ± 4.50

0.192

0.847

Optic disc (mm)

1.83 ± 0.17

1.85 ± 0.20

1.937

0.053

Optic cup (mm)

0.75 ± 0.22

0.71 ± 0.18

3.515

< 0.001

Gender (male/female)

280/300

348/356

0.170

0.680

Cataracts (yes/no)

280/300

474/230

47.630

< 0.001

Refractive error (yes/no)

34/546

184/520

92.735

< 0.001

Glaucoma (yes/no)

72/508

80/624

0.336

0.562

Hypertension (yes/no)

134/446

288/416

46.694

< 0.001

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