Table 4.

Relation of Choroidal Thickness to Diastolic Ocular Perfusion Pressure, Diastolic Blood Pressure, and IOP in Multivariable Regression Models^†

	Model 1 Coeff (p value)	Model 2 Coeff (p value)	Model 3 Coeff (p value)	Model 4 Coeff (p value)
Macular Choroidal Thickness Models
Diastolic Perfusion Pressure			2.9 (0.003)
Diastolic Blood Pressure		2.3 (0.018)		2.86 (0.005)
IOP	−1.61 (0.323)			−3.07 (0.068)
Model Fit
AIC‡	787.9	741.56	737.7	739.68
R2	0.53	0.54	0.57	0.57
Peripapillary Choroidal Thickness Models
Diastolic Perfusion Pressure			2.52 (0.005)
Diastolic Blood Pressure		2.07 (0.021)		2.52 (0.007)
IOP	−1.24 (0.411)			−2.55 (0.1)
Model Fit
AIC‡	777.24	730.02	726.86	728.86
R2	0.38	0.43	0.46	0.46

^†All models included age, sex, race, axial length, central corneal thickness and glaucoma diagnosis (glaucoma vs suspect). Coefficients reported in the table represent change in choroidal thickness per additional 1 mmHg in the predictor. (i.e., Diastolic perfusion pressure)

^‡AIC (Akaike information criteria; lower values, indicate better model fit.)

IOP (Intraocular pressure), AIC (Akaike Information criteria), Coeff = beta coefficient value for each variable from regression models, R² = regression coefficient for each model.

Units for IOP, Diastolic Blood Pressure and Diastolic Perfusion Pressure are mmHg.