Analysis of Choroidal Vascularity Index in Keratoconus Patients Using Swept-Source Optical Coherence Tomography-Based Binarization Techniques
Table 6
Effect of having a keratoconus as compared with being a control on each choroidal vascular parameter adjusted for age.
Coefficient (95% CI)
Standard error
value
Choroidal area
Keratoconus
1.30 (1.15 to 1.45)
0.08
<0.001
Age, years
−0.007 (−0.011 to −0.004)
0.002
<0.001
Intercept
0.55 (0.51 to 0.59)
0.021
<0.001
Stromal region
Keratoconus
0.52 (0.46 to 0.58)
0.03
<0.001
Age, years
−0.002 (−0.003 to −0.000)
0.001
0.03
Intercept
0.26 (0.25 to 0.28)
0.01
<0.001
Vascular region
Keratoconus
0.76 (0.67 to 0.85)
0.05
<0.001
Age, years
−0.005 (−0.008 to −0.003)
0.001
<0.001
Intercept
0.28 (0.26 to 0.31)
0.01
<0.001
CCV
Keratoconus
4.07 (2.22 to 5.93)
0.95
<0.001
Age, years
−0.19 (−0.25 to −0.13)
0.03
<0.001
Intercept
50.66 (49.36 to 51.95)
0.66
<0.001
Effect of having a keratoconus as compared with being a control on each choroidal vascular parameter, adjusted for age (mean-centered at 44.4 years old), using generalized estimating equations with robust standard errors to account for intereye correlation. CCV: corrected choroidal percent of vascularity.
