Glaucomatous Visual Field Defect Severity and the Prevalence of Motor Vehicle Collisions in Japanese: A Hospital/Clinic-Based Cross-Sectional Study

Table 4

Prevalence of MVCs in subjects with POAG, grouped by MD in the better eye, worse eye, or IVF.

		Control	Mild glaucoma	Moderate glaucoma	Severe glaucoma	value
	MD, worse eye	30/187	17/92	14/60	14/47	0.025^a
		(16.0%)	(18.5%)	(23.3%)	(29.8%)
Severity, grouped by	MD, better eye	30/187	36/163	6/24	3/12	0.12^a
		(16.0%)	(22.1%)	(25.0%)	(25.0%)
	MD, IVF	30/187	41/165	3/20	1/6	0.27^a
		(16.0%)	(24.8%)	(15.0%)	(16.7%)

MVC: motor vehicle collision, POAG: primary open-angle glaucoma, MD: mean deviation, and IVF: integrated visual field.
^aCochran-Armitage trend test.