Table 1.

5-yr Incidence of Hearing Impairment by Baseline Age and Sex: Beaver Dam Offspring Study

Baseline Age (yrs)	All			Men			Women
	N at risk	n cases	% (95% CI)	N at risk	n cases	% (95% CI)	N at risk	n cases	% (95% CI)
21–34	129	2	1.6 (0.2, 5.5)	52	2	3.9 (0.5, 13.2)	77	0	0.0 (0.0, 4.7)
35–44	609	30	4.9 (3.2, 6.6)	266	19	7.1 (4.1, 10.2)	343	11	3.2 (1.3, 5.1)
45–54	776	62	8.0 (6.1, 9.9)	342	39	11.4 (8.0, 14.8)	434	23	5.3 (3.2, 7.4)
55–64	384	50	13.0 (9.7, 16.4)	154	33	21.4 (15.0, 27.9)	230	17	7.4 (4.0, 10.8)
65–79	86	20	23.3 (14.3, 32.2)	31	5	16.1 (5.5, 33.7)	55	15	27.3 (15.5, 39.0)
All	1984	164	8.3 (7.1, 9.5)	845	98	11.6 (9.4, 13.8)	1139	66	5.8 (4.4, 7.2)