Familial Aggregation and Heritability of Myopia: A Local Population Survey in Shanxi, China

Table 4

Myopia heritability of students and parents.

Student status	Parents	Myopic parents	q (%)	x	a	b	h^2 (%)
No myopia	1267	210	16.57	0.974	1.504
Mild myopia	1425	245	17.19	0.946	1.482	0.019	3.72
Moderate myopia	688	142	20.64	0.820	1.383	0.102	20.48
High myopia	162	44	27.16	0.613	1.225	0.240	48.00