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Table 1 Study and patient characteristics

From: Anti-vascular endothelial growth factor therapy for age-related macular degeneration: a systematic review and network meta-analysis

 

Number of studies (n = 92)

% of studies

Study characteristics

Year of publication

2000–2006

8

8.7%

2007–2011

31

33.7%

2012–2017

42

45.7%

2018–2019

11

11.9%

Geographic region

Europe

33

35.9%

North America

29

31.5%

Asia

19

20.7%

Multi

8

8.7%

Australia/New Zealand

3

3.3%

Study design

Parallel RCT

91

98.9%

Cluster RCT

1

1.1%

Setting

Multi-centre

55

59.8%

Single-centre

36

39.1%

Sample Size

< 50

25

30%

50–149

31

33%

150–249

9

11%

250–499

13

9%

500–999

8

4%

≥ 1000

14

15.5%

Study duration (months)a

< 12

18

19.6%

12

58

63.0%

13–23

4

4.3%

24

10

10.9%

36

2

2.2%

Frequency of interventions examined

Aflibercept

5

6%

Bevacizumab

27

34%

Bevacizumab+IVTA+PDT

1

1%

Bevacizumab+PDT

5

6%

Brolucizumab

2

2%

Conbercept

1

1%

DXM

1

1%

DXM+PDT+ranibizumab

1

1%

DXM+ranibizumab

3

4%

IVTA

4

5%

IVTA+Bevacizumab

2

3%

IVTA+PDT

7

9%

IVTA+ranibizumab

1

1%

PDT

15

19%

PDT+ranibizumab

10

13%

Placebo

8

10%

Ranibizumab

42

53%

Number of studies by outcome

Vision gain

48

61%

Vision loss

51

65%

Mean BCVA

77

97%

Legal blindness

8

10%

Vision-related function

6

8%

All-cause mortality

45

57%

Arterial thromboembolic events

18

23%

Venous thromboembolic events

11

14%

Bacterial endophthalmitis

24

30%

Retinal detachment

20

25%

AE

22

28%

Serious AE

23

29%

Withdrawals due to AE

16

20%

Patient characteristics

Total # patients: 24,717

Mean number of patients (range): 655.77 (7–4300)

Mean age in years (range): 75.3 (60.0–83.0)a

% Female (range): 0.0–74.0%

Mean age (years)b

60-70

3

4%

70-75

7

9%

75-80

21

27%

> 80

1

1%

NR

45

57%

% female

< 47.0%

14

18%

48.0–57.0%

13

17%

58.0–62.0%

19

24%

62.5–65.0%

11

14%

66.0–74.0%

13

16%

NR

9

11%

% patients with hypertension

0.0–50.0%

4

5%

51.0–78.0%

3

4%

NR

72

91%

Lens status

Mixed

6

8%

Pseudophakic

4

5%

Phakic

1

1%

NR

79

87%

  1. Abbreviations: AE, adverse events; BCVA, best-corrected visual acuity; DXM, dexamethasone; IVTA, intravitreal triamcinolone; NR, not reported; PDT, photodynamic therapy; RCT, randomized controlled trials
  2. aAverage study duration = 12.38 months
  3. bTwo studies reported a median age of 69 (Li, 2012) and 79 (Felgen, 2017) years respectively