Table 6.

Estimates for Selected Coefficients in the Regression between Myopia Progression and Relative Peripheral Refraction, Age, and Sex

Variable	Change in Foveal Refractive Error		Change in AL
	Coefficient	P	Coefficient	P
Average RPR	−0.024	0.020	0.0015	0.77
RPR at interval start	0.012	0.19	0.0058	0.22
Age	0.033	0.034	0.046	<0.0001
Sex	−0.090	<0.0001	−0.024	0.030

Average RPR and RPR at the start of an interval were predictors in separate models. Coefficients for age and sex are from the model with average RPR. A negative sign indicates association with greater myopia progression or faster axial elongation. AL, axial length.