Table 5 The association of average retinal nerve fiber layer thickness with studied variables according to simple and multiple generalized estimating equations models.

From: Retinal nerve fiber layer thickness profile in an Iranian adult population

 

Simple

Multiple

Coefficient (95%CI)

p-value

Coefficient (95%CI)

p-value

Female sex

1.73 (0.02; 3.44)

0.048

1.4 (− 0.28; 3.08)

0.103

Age

 50–54

0

0

 55–59

1.41 (− 0.34; 3.16)

0.115

1.48 (− 0.20; 3.16)

0.085

 60–64

0.19 (− 1.60; 1.99)

0.833

1.04 (− 0.69; 2.76)

0.240

 65–69

− 0.54 (− 2.51; 1.43)

0.590

0.24 (− 1.64; 2.11)

0.803

 70–74

− 3.05 (− 5.40; − 0.70)

0.011

− 1.12 (− 3.39; 1.16)

0.336

Interaction sex and age

 Female (50–54)

0

0

 Female (55–59)

− 2.34 (− 4.58; − 0.10)

0.041

− 1.78 (− 3.93; 0.37)

0.105

 Female (60–64)

− 0.54 (− 2.87; 1.79)

0.651

− 0.58 (− 2.81; 1.66)

0.614

 Female (65–69)

1.17 (− 1.47; 3.81)

0.386

0.87 (− 1.65; 3.38)

0.500

 Female (70–74)

3.92 (0.65; 7.19)

0.019

3.15 (0.00; 6.29)

0.050

Height (cm)

− 0.01 (− 0.05; 0.03)

0.628

 

NR

Weight (kg)

0.03 (0.00; 0.06)

0.066

 

NR

Body mass index‎

0.09 (0.01; 0.17)

0.037

0.11 (0.02; 0.19)

0.013

Smoking (yes/no)

− 2.17 (− 5.00; 0.65)

0.131

 

NR

Hypertension (yes/no)

− 0.71 (− 1.53; 0.11)

0.089

 

NR

Diabetic (yes/no)

− 0.63 (− 1.49; 0.24)

0.155

− 1.09 (− 1.91; − 0.27)

0.009

Systolic blood pressure (mm/Hg)

− 0.02 (− 0.04; 0.01)

0.159

 

NR

Diastolic blood pressure ‎ (mm/Hg)

− 0.03 (− 0.06; 0.01)

0.149

 

NR

Cataract surgery (Yes/No)

0.2 (− 0.97; 1.38)

0.737

 

NR

Intraocular pressure‎ (mm/Hg)‎

− 0.07 (− 0.17; 0.03)

0.177

 

NR

Axial length (mm)

− 1.78 (− 2.24; − 1.32)

< 0.001

− 2.29 (− 2.84; − 1.74)

< 0.001

Central corneal thickness (microns)‎

0.00 (− 0.02; 0.01)

0.519

 

NR

Anterior chamber depth (mm)

− 0.43 (− 1.02; 0.17)

0.162

 

NR

Lens thickness (mm)

1.19 (0.00; 2.37)

0.049

 

NR

Corneal diameter (mm)

0.09 (− 0.72; 0.89)

0.835

 

NR

Mean keratometry (diopter)

− 0.74 (− 2.22; 0.74)

0.325

5.27 (3.58; 6.96)

< 0.001

Triglyceride ‎(mg/dL)‎

0.00 (0.00; 0.01)

0.294

 

NR

Total cholesterol (mg/dL)

0.01 (0.00; 0.02)

0.073

 

NR

HDL cholesterol (mg/dL)

0.03 (− 0.02; 0.09)

0.225

 

NR

Cardiovascular disease (Yes/No)

− 0.7 (− 1.75; 0.35)

0.192

 

NR

Central macular thickness (microns‎)

23.3 (11.22; 35.38)

< 0.001

− 21.39 (− 35.05; − 7.73)

0.002

Macular Volume (mm3)

7.64 (6.94; 8.34)

< 0.001

8.30 (7.47; 9.13)

< 0.001

Refractive errors

0

 

NR

Myopia

− 1.37 (− 2.05; − 0.68)

< 0.001

  

Hyperopia

0.87 (0.29; 1.44)

0.003

  
  1. NR: not retained in multiple model; HDL: high-density lipoprotein.