Table 2.

Relative Peripheral Refractive Error and Peripheral Cylinder at Baseline by Sex and Ethnicity of the 2043 Nonmyopic Third-Grade Children in the Risk Analysis

	Mean RPR ± SD	P	Mean Peripheral Cylinder ± SD	P	> +0.00 D n (%)	P
Male	−0.45 ± 0.97	0.20	−2.47 ± 1.18	0.56	293 (30)	0.014
Female	−0.40 ± 1.00		−2.50 ± 1.21		368 (35)
Native American	−0.53 ± 1.24		−1.93 ± 0.79		105 (35)
Asian	−0.31 ± 0.86		−2.62 ± 1.13		93 (41)
African American	−0.36 ± 1.09	<0.0001	−2.36 ± 1.14	<0.0001	124 (33)	0.0005
Hispanic	−0.24 ± 0.87		−2.42 ± 1.00		181 (37)
White	−0.60 ± 0.89		−2.83 ± 1.42		156 (24)
Other	−0.73 ± 0.76		−2.45 ± 0.99		2 (13)

Numbers of subjects with a hyperopic RPR > +0.00 D are also given by sex and ethnicity.