Table 3 Subgroup analysis within MacTel severity 3.

From: Optical coherence tomographic features of macular telangiectasia type 2: Korean Macular Telangiectasia Type 2 Study—Report No. 1

Variable

Inner retinal cavity

Clustered HF at foveola

Only IR cavity

With other findings

P value*

Present

Absent

P value*

(N = 50)

(N = 61)

(N = 19)

(N = 31)

LogMAR VA

Mean (SE)a

0.187 (0.030)

0.308 (0.031)

0.005

0.106 (0.030)

0.229 (0.033)

0.006

Nb

50

61

19

31

FP scorec

Mean (SE)

1.06 (0.17)

1.61 (0.22)

0.034

0.68 (0.17)

1.07 (0.21)

0.154

N

49

58

19

30

CBR scorec

Mean (SE)

2.55 (0.63)

3.67 (0.353)

0.012

1.25 (0.18)

3.50 (0.35)

< 0.001

N

6

13

3

3

FAF scorec

Mean (SE)

1.61 (0.24)

2.27 (0.24)

0.039

1.06 (0.22)

1.74 (0.29)

0.062

N

41

48

18

23

Early FAG scorec

Mean (SE)

1.63 (0.23)

2.34 (0.17)

0.010

1.43 (0.268)

1.83 (0.297)

0.322

N

44

56

15

27

Late FAG scorec

Mean (SE)

1.85 (0.22)

2.67 (0.20)

0.003

1.44 (0.32)

1.98 (0.32)

0.198

N

44

56

15

27

  1. CBR confocal blue light reflectance, FAF fundus autofluorescence, FAG fluorescein angiography, FP fundus photo, HF hyperreflective foci, SE standard error, VA visual acuity.
  2. *P values are by generalized linear models and the generalized estimation equation method to account for correlation between eyes.
  3. aData are expressed as estimated marginal mean (standard errors). Each estimated mean was shown to account for correlation between eyes using generalized linear models and the generalized estimation equation method.
  4. bThe number of eyes that had gradable images for analysis. Some images are missing or ungradable for each image modality and expressed the number of eyes that included for analysis.
  5. cThe score was the sum of the affected ETDRS subfields of each image modality.
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