Prevalence of high frequency hearing loss consistent with noise exposure among people working with sound systems and general population in Brazil: A cross-sectional study

BMC Public Health

Table 1 Distribution of participants in the study groups according to age, gender, hearing complaints, music listening habits, tinnitus and presence of ototoxicity exposure.

Variables	Sound technicians		Controls		p
	n = 82	%	n = 95	%
Age
< 25	8	9.8	9	9.5	0.949^a
25 to 35	33	40.2	52	54.7	0.054^a
36 to 45	23	28.0	21	22.1	0.316^a
> 45	18	22.0	13	13.7	0.149^a
Mean ± SD	37.38 ± 9.98		35.09 ± 9.56		0.122^b
Min-max	20–65		22–65
Gender
Female	4	4.9	4	4.2	0.718^a
Male	78	95.1	91	95.8
Hearing Complaint
No	60	73.2	84	88.4
Yes	22	26.8	11	11.6	0.009^a
Music listening habits
No	57	69.5	70	73.7	0.539^a
Yes	25	30.5	25	26.3
Tinnitus
No	52	63.4	84	88.4	< 0.001^a
Yes	30	36.6	11	11.6
Ototoxicity exposure
No	72	87.8	84	88.4	> 0.05
Yes	10	12.0	11	11.6