Table 3 Multiple linear regression analysis of the contrast discrimination thresholds in three paradigms.

From: Achromatic and chromatic contrast discrimination in patients with type 2 diabetes

Group comparison

Paradigm

 

Stimulus condition

 

β

SE

P value

β

SE

P value

β

SE

P value

Control

Pulsed pedestal

7 cd/m2

12 cd/m2

19 cd/m2

No-DR

 

0.041

0.049

0.406

0.066

0.053

0.216

0.018

0.054

0.75

NPDR

 

0.167

0.063

0.010

0.162

0.069

0.020

0.056

0.070

0.43

PDR

 

0.267

0.777

0.001

0.511

0.084

 < 0.01*

0.311

0.086

 < 0.01*

P for trend

 

0.089

0.023

 < 0.01*

0.143

0.026

 < 0.01*

0.08

0.026

 < 0.01*

Control

Pedestal-△-pedestal

11 cd/m2

18 cd/m2

28 cd/m2

No-DR

 

− 0.008

0.035

0.81

− 0.029

0.052

0.57

− 0.011

0.042

0.79

NPDR

 

0.017

0.045

0.71

0.029

0.067

0.67

0.052

0.055

0.35

PDR

 

0.138

0.056

0.02*

0.120

0.082

0.15

0.099

0.067

0.14

P for trend

 

0.035

0.017

0.04*

0.034

0.025

0.17

0.033

0.020

0.11

Control

Chromatic CS

Protan

Deutan

Tritan

No-DR

 

− 0.005

0.006

0.35

− 0.016

0.028

0.58

− 0.011

0.014

0.42

NPDR

 

0.007

0.007

0.34

0.037

0.036

0.31

0.035

0.018

0.05

PDR

 

0.044

0.009

 < 0.01*

0.191

0.045

 < 0.01*

0.116

0.022

 < 0.01*

P for trend

 

0.011

0.003

 < 0.01*

0.050

0.014

 < 0.01*

0.033

0.007

 < 0.01*

Control

Pedestal-△-pedestal

11 cd/m2

18 cd/m2

28 cd/m2

No-DR

 

− 0.008

0.035

0.81

− 0.029

0.052

0.57

− 0.011

0.042

0.79

NPDR

 

0.017

0.045

0.71

0.029

0.067

0.67

0.052

0.055

0.35

PDR

 

0.138

0.056

0.02*

0.120

0.082

0.15

0.099

0.067

0.14

P for trend

 

0.035

0.017

0.04*

0.034

0.025

0.17

0.033

0.020

0.11

Control

Chromatic CS

Protan

Deutan

Tritan

No-DR

 

− 0.005

0.006

0.35

− 0.016

0.028

0.58

− 0.011

0.014

0.42

NPDR

 

0.007

0.007

0.34

0.037

0.036

0.31

0.035

0.018

0.05

PDR

 

0.044

0.009

 < 0.01*

0.191

0.045

 < 0.01*

0.116

0.022

 < 0.01*

P for trend

 

0.011

0.003

 < 0.01*

0.050

0.014

 < 0.01*

0.033

0.007

 < 0.01*

  1. Data of the controls were used as the baseline for comparison with those of the diabetic patients with no-DR, NPDR, and PDR.
  2. *Indicates significant p values (p < 0.05), indicates marginally significant p values (0.05 ≤ p < 0.1).
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