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Table 5 Stepwise multiple linear regression model analysis for predicting theoretical SP-A1 in three groups

From: Relationship between corneal biomechanical parameters and corneal sublayer thickness measured by Corvis ST and UHR-OCT in keratoconus and normal eyes

Groups Main predictors B SE β t P Adjusted R2 F P
Normal Constant −73.731 40.029   −1.842 0.085 0.577 20.481 0.000
STT 0.376 0.083 0.760 4.526 0.000    
KC group Constant 138.830 46.527   2.984 0.007 0.598 18.854 0.000
Steep K −3.077 0.669 −0.608 −4.599 0.000    
BLT 5.266 1.731 0.402 3.042 0.006    
SKC group Constant −76.349 20.140   −3.791 0.000 0.619 83.792 0.000
STT 0.399 0.044 0.791 9.154 0.000    
  1. Normal = normal group; KC = keratoconus group; SKC = suspected keratoconus group; B = unstandardized coefficients; SE = standard error of unstandardized coefficients; β = standardized coefficients (beta); t = unstandardized coefficient/standard error; STT = stromal thickness; BLT = Bowman’s layer thickness; Steep K = steep keratometry