Psychometric properties and comparison of four health utility approaches among myopia patients in China

Table 3 Correlation between NEI VFQ-25 and four health utility approaches

NEI-VFQ-25	TTO	SG	AQoL-7D	VFQ-UI
Composite score	0.124^**	0.029	0.493^**	0.785^**
General Health	0.073	0.029	0.328^**	0.167^**
General Vision	0.049	0.023	0.326^**	0.338^**
Ocular Pain	0.028	0.006	0.249^**	0.266^**
Near Activities	0.119^**	-0.027	0.343^**	0.716^**
Distance Activities	0.136^**	0.052	0.427^**	0.641^**
Social Function	0.151^**	0.032	0.367^**	0.665^**
Mental Health	0.153^**	0.099^*	0.447^**	0.642^**
Role Difficulties	0.036	-0.008	0.283^**	0.556^**
Dependency	0.066	0.088	0.417^**	0.647^**
Driving	0.082	0.037	0.337^**	0.468^**
Color Vision	0.063	-0.017	0.203^**	0.498^**
Peripheral Vision	0.119^**	0.043	0.322^**	0.564^**

ISSN: 1477-7525