TABLE 2.

Prevalence of Neurologic Symptoms Among 16,340 Participants in the Agricultural Health Study, 1993–1997

	Numbness, n (%)	Weakness, n (%)	Speech Problems, n (%)	Blurred Vision, n (%)	Night Blindness, n (%)
All cattle farmers (n = 8,878)	2,598 (29.3)	1,455 (16.4)	407 (4.6)	975 (11.0)	1,031 (11.6)
Only cattle (n = 4,275)	1,191 (27.9)	678 (15.9)	175 (4.1)	464 (10.9)	509 (11.9)
Beef farmers (n = 8,136)	2,364 (29.1)	1,328 (16.3)	372 (4.6)	883 (10.9)	942 (11.6)
Dairy farmers (n = 1,168)	379 (32.5)	213 (18.2)	61 (5.2)	141 (12.1)	137 (11.7)
Reference (n = 7,462)	1,865 (25.0)	1,040 (13.9)	308 (4.1)	784 (10.5)	944 (12.7)
Total sample	4,463 (27.3)	2,495 (15.3)	715 (4.4)	1,759 (10.8)	1,975 (12.1)