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Table 1 Mean scotopic and photopic ERG a- and b-wave amplitudes in different groups at different time points

From: Safe dose of intravitreal imatinib and its effect on laser-induced choroidal neovascularization: a rat-model experiment

 

Time

 

Group F

Group E

Group D

Group C

Group B

Group A

P value

 

Photopic ERG a-wave amplitude (µv)

Base

Value

22.85 ± 28.57

19.48 ± 20.36

12.47 ± 5.91

12.45 ± 16.98

13.13 ± 9.19

12.86 ± 13.77

0.841‡

 

Week 1

Value

14.83 ± 11.72

11.17 ± 5.57

8.9 ± 6.59

10.84 ± 8.02

12.22 ± 7.73

10.38 ± 9.21

0.540*

 

Within P†

0.684

0.528

0.541

1.000

1.000

1.000

  

Week 4

Value

9.92 ± 4.46

8.25 ± 6.13

6.68 ± 5.73

10.46 ± 5.62

12.66 ± 10.67

8.07 ± 7.17

0.285*

 

Within P†

0.679

0.293

0.142

1.000

1.000

1.000

  

Photopic ERG b-wave amplitude (µv)

Base

Value

39.55 ± 16.06

49.47 ± 16.29

36.25 ± 18.16

34.54 ± 30.04

47.82 ± 32.77

31.13 ± 15.47

0.721‡

 

Week 1

Value

28.83 ± 10.94

36.38 ± 17.26

28.88 ± 13.28

29.87 ± 17.7

44.72 ± 32.98

30.8 ± 17.31

0.277*

 

Within P†

0.165

0.523

0.222

1.000

1.000

1.000

  

Week 4

Value

35.48 ± 17.57

38.45 ± 31.76

26.73 ± 10.26

29.45 ± 12.36

25.18 ± 22.11

30.29 ± 25.66

0.853*

 

Within P†

0.934

1.000

0.205

1.000

0.276

1.000

  

Scotopic ERG a-wave amplitude (µv)

Base

Value

77.19 ± 36.94

45.69 ± 24.72

34.43 ± 18.89

47.86 ± 36.06

51.19 ± 17.11

54.33 ± 17.06

0.079‡

 

Week 1

Value

68.69 ± 38.25

43.15 ± 42.86

31.21 ± 16.94

44.83 ± 24.19

43.18 ± 27.21

24.26 ± 14.82

0.024*

F Vs A

Within P†

1.000

1.000

1.000

1.000

0.772

0.000

  

Week 4

Value

57.89 ± 11.08

54.52 ± 67.42

19.74 ± 15.09

30.86 ± 30.34

32.14 ± 24.89

25.64 ± 13.44

0.135*

 

Within P†

0.522

1.000

0.172

0.590

0.141

0.000

  

Scotopic ERG b-wave amplitude (µv)

Base

Value

153.03 ± 83.46

186.2 ± 71.72

145.13 ± 45.81

126.6 ± 43.54

155.41 ± 52.43

154.32 ± 58.28

0.163‡

 

Week 1

Value

129.98 ± 48.91

169.2 ± 53.28

125.86 ± 87.19

73.5 ± 20.77

98.01 ± 39.99

70.66 ± 44.32

0.003*

F Vs C & A

Within P†  

1.000

1.000

0.928

0.026

0.061

0.000

  

Week 4

Value

102.13 ± 122.37

142.84 ± 68.11

88.57 ± 61.39

55.95 ± 29.69

90.23 ± 72.82

58.85 ± 41.12

0.195

 

Within P†

0.626

0.623

0.046

0.001

0.031

0.000

  
  1. †Based on Mixed analysis, adjusted for the multiple comparison by Bonferroni method
  2. ‡Based on Mann–Whitney test
  3. * Adjusted for the baseline, based on analysis of covariance