Table 1. Overview of the Study Population.

Characteristic	Age Groups, y
	Total	60-69	70-79	≥80
Total, No. (% female)	100 (39)	35 (34)	38 (37)	27 (48)
Age, mean (SEM), y	73 (0.9)	64 (0.5)	75 (0.4)	84 (0.7)
Hearing loss type, No.
Unilateral	21	6	8	7
Bilateral	36	9	15	12
No hearing loss	43	20	15	8
Previous noisy work environment, No.	43	17	17	9

Abbreviation: SEM, standard error of mean.