Table 5.
Univariate Regression Statistics
KCN | NRL | |
---|---|---|
Cspot-max (D) vs. CCSdiff (dimensionless) | P < 0.0001; R2 = 0.5882 | P = 0.0080; R2 = 0.0451 |
Cspot-max (D) vs. distance of Pach-min to CCSmax | P < 0.0001; R2 = 0.3737 | P = 0.8011; R2 = 0.0004 |
CCSdiff = difference between maximum and minimum corneal contribution to stress; CCSmax = maximum zone of corneal contribution to stress; Cspot-max = maximum zone of tangential curvature; D = diopter; KCN = keratoconus; NRL = normal control; Pach-min = minimum zone of thickness.