Table 4 Visual field progression of retinitis pigmentosa patients by status of macular complication.

From: Assessment of Central Visual Function in Patients with Retinitis Pigmentosa

Variable

n

Coefficient

95% CI

P value

P for interaction

MD

Ā Ā Macular complication (āˆ’)

44

āˆ’0.46

āˆ’0.66 to āˆ’0.26

<0.0001

0.30

Ā Ā Macular complication (+)

16

āˆ’0.65

āˆ’1.02 to āˆ’0.29

0.002

MS

Ā Ā Macular complication (āˆ’)

44

āˆ’0.50

āˆ’0.81 to āˆ’0.19

0.002

0.10

Ā Ā Macular complication (+)

16

āˆ’0.98

āˆ’1.51 to āˆ’0.46

0.001

FS

Ā Ā Macular complication (āˆ’)

44

āˆ’0.49

āˆ’0.80 to āˆ’0.19

0.002

0.05

Ā Ā Macular complication (+)

16

āˆ’1.08

āˆ’1.68 to āˆ’0.49

0.002

  1. Average progression rate of MD, MS, and FS using linear mixed models in the subgroups of
  2. variables. The patients were divided into two groups by the presence or absence of macular
  3. complication. Random intercepts and random slopes for each subject are adopted for
  4. analysis. The coefficient of time (years) of each model is the fixed effect of the slopes, or
  5. the average progression rate.
  6. CI, confidence interval.
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