. 2017 Mar 22;7:45059. doi: 10.1038/srep45059

Table 1. General Characteristics of the 3001 Participants and Comparison Between Different Refractive Groups.

Parameters	Total N = 3001	Range	Myopes N = 1548	Range	Emmetropes N = 441	Range	Hyperopes N = 1012	Range	p value
Parameters	Mean ± SD^a	Range	Mean ± SD^a	Range	Mean ± SD^a	Range	Mean ± SD^a	Range	p value
Boys, No. (%)	1555 (51.8)	—	765 (49.4)	—	226 (51.2)	—	564 (55.7)	—	0.007^b
Age, years	11.7 ± 3.4	6~19	13.5 ± 3.02	6.3~19.4	11.0 ± 2.9	6.3~18.4	9.2 ± 2.4	6.3~18.0	<0.001^c
Height, cm	148.7 ± 17.2	109.0~193.0	157.6 ± 14.2	117.0~193.0	146.0 ± 15.2	112.0~186.0	136.3 ± 13.8	109.0~184.5	<0.001^c
Weight, kg	43.4 ± 16.5	16.5~130.0	50.7 ± 15.9	20.0~130.0	41.1 ± 14.36	16.5~105.0	33.2 ± 12.0	17.0~87.0	<0.001^c
BMI, kg/m²	18.9 ± 3.8	10.8~40.6	20.0 ± 3.9	12.4~40.6	18.7 ± 3.6	11.3~31.4	17.33 ± 3.19	10.84~30.48	<0.001^c
IOP, mmHg	16.5 ± 2.6	9~25	16.7 ± 2.5	9~25	16.7 ± 2.5	10~24	16.3 ± 2.6	9~24	0.001^c
AL, mm	24.04 ± 1.31	20~29	24.90 ± 1.10	22~29	23.48 ± 0.75	21~26	22.97 ± 0.76	20~27	<0.001^c
Spherical equivalent, D	−1.20 ± 2.48	−11.38~8.38	−3.08 ± 2.00	−11.38~−0.5	0.03 ± 0.25	−0.38~0.38	1.14 ± 0.70	0.50~8.38	<0.001^c

BMI: body mass index; AL: axial length; IOP: intraocular pressure; SD: standard deviation; D: diopter.

^aExcept where noted otherwise.

^bStatistical significance was tested using Chi-Square tests.

^cStatistical significance was tested using variance analysis.