. 2016 Aug 17;28(4):223–225. doi: 10.1016/j.joco.2016.07.007

Table 1.

Characteristics of subjects with significant refractive error compared with emmetropics. The P values were calculated to compare the significant refractive error group and emmetropic group.

	All cases	Significant refractive error group	Emmetropic group	P value
Number	183	101	82	–
Age (year)^a	8.26 ± 2.21	8.41 ± 2.39	8.08 ± 1.97	0.318^b
Sex (male/female)	105/78	56/45	49/33	0.558^c
Spherical equivalent refractive error (Diopters)^a	0.55 ± 0.49	2.10 ± 3.49	0.25 ± 0.30	<0.001^b
Rutter A Scale score^a	8.60 ± 6.89	9.53 ± 7.15	7.45 ± 9.53	0.039^b
Abnormal Rutter A Scale score	44 (23.9%)	30 (29.7%)	14 (17.1%)	0.043^c

Mean ± standard deviation.

t test.

Chi square test.