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Table 1 Demographic characteristics of patients who had a Baerveldt glaucoma drainage implant surgery

From: Risk factors for exposure of Baerveldt glaucoma drainage implants: a case-control study

Characteristics

Exposure eyes

(n = 12)

Control eyes

(n = 68)

P value *

Age (years)

  

0.93

 Mean ± SD

57.4 ± 19.8

56.8 ± 24.5

 

Follow-up period (months)

  

0.94

 Mean ± SD

26.2 ± 17.6

26.6 ± 14.5

 

Sex

  

1.00

 Male

7

38

 

 Female

5

30

 

Eye

  

0.35

 Right

9

40

 

 Left

3

28

 

Diabetes mellitus

  

0.32

 Yes

6

22

 

 No

6

46

 

Type of glaucoma

  

0.51

 Primary open angle

0

7

 

 Neovascular

6

20

 

 Secondary

5

28

 

 Pediatric

1

12

 

 Chronic angle closure

0

1

 

Previous ocular surgery

  

1.00

 Yes

12

63

 

 No

0

5

 

History of ≥3 previous TLE, no. of eyes

  

0.46

 Yes

4

15

 

 No

8

53

 

Type of implant

  

0.099

 BG 101-350/ BG 103-250

8

59

 

 BG 102-350

4

9

 

Implant location

  

0.84

 Superior-temporal

3

21

 

 Inferior-temporal

9

44

 

 Superior-nasal

0

1

 

 Inferior-nasal

0

2

 

Implant location

  

0.74

 Superior

3

22

 

 Inferior

9

46

 

Tube entry site

  

0.50

 Anterior chamber

3

24

 

 Posterior chamber

5

32

 

 Vitreous

4

12

 

Type of patch graft

  

0.095

 Self-sclera flap

9

63

 

 Human donor sclera

3

5

 
  1. SD: standard deviation, TLE: trabeculectomy, no.: number
  2. * P values were obtained from two-sample t-tests for continuous variables and Fisher’s exact tests for categorical variables