Incidence of myopia and biometric characteristics of premyopic eyes among Chinese children and adolescents

BMC Ophthalmology

Table 3 Biometric characteristics of premyopic eyes among grade 1 and 7 students

Baseline biometric characteristics	Grade 1 students				Grade 7 students
	Univariate		Multivariate-adjusted^a		Univariate		Multivariate-adjusted^a
	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
AL (per mm increase)	1.28 (1.13, 1.46)	< 0.001	1.93 (1.24,2.30)	0.004	1.22 (1.06, 1.41)	0.005	1.51 (1.28,1.77)	< 0.001
LT (per mm increase)	0.55 (0.35, 0.87)	0.01	0.67 (0.45,0.92)	0.02	0.78 (0.45,1.36)	0.38	0.67 (0.38, 1.18)	0.17
ACD (per mm increase)	0.92 (0.63, 1.34)	0.67	0.70 (0.21,2.27)	0.55	1.44(0.94,2.22)	0.10	1.39 (1.22,3.04)	0.005
CP (per diopter increase)	0.95 (0.90,1.01)	0.11	0.86 (0.71, 1.05)	0.14	1.05 (0.98, 1.13)	0.20	0.99 (0.92,1.07)	0.78
SE (per diopter increase)	0.48 (0.40,0.58)	< 0.001	0.61 (0.36, 0.99)	0.04	0.12 (0.09,0.16)	< 0.001	0.13 (0.09,0.18)	< 0.001

AL axial length, LT lens thickness, ACD anterior chamber depth, CP corneal power, SE spherical equivalent, OR odds ratio, CI confidence interval
^aControlling for gender, height, parental myopia, near work and time outdoors

ISSN: 1471-2415