Table 1. General information of the study population.

Age (y)	n (male %)	BMI (kg/m2)	Spherical equivalent, diopter		AL (mm)
			OD	OS
6	54 (19.4)	16.50±2.14	-0.07±0.72	-0.04±0.63	23.23±0.70
7	61 (21.9)	16.27±2.12	0.43±0.85	0.43±0.90	23.47±0.83
8	63 (22.6)	16.95±2.39	-0.33±0.64	-0.32±0.70	23.53±0.76
9	55 (19.7)	17.26±2.56	-0.97±0.86	-0.94±0.90	24.07±0.83
10	46 (16.5)	17.65±2.32	-1.13±1.00	-1.10±1.05	24.14±0.78
Total	279	16.94±2.40	-0.56±0.90	-0.54±0.92	23.66±0.86

BMI: Body mass index; OS: Left eye; OD: Right eye; AL: Axial length.