Blood pressure (mmHg)

n

%

<120/80

4

11.8

120 - 139/80 - 89

15

44.1

140 - 159/90 - 99

7

20.6

≥160/100

8

23.5

Grade of retinopathy

n

%

0

2

6.1

I

14

42.4

II

14

42.4

III

3

9.1