Table 1.
Sociodemographic characteristics of notifications of noise-induced hearing loss (NIHL) according to occupation, Brazil, 2012 to 2021
| Variables, n (%) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sex | |||||||||||
| Female | 0 (0.0) | 10 (13.2) | 85 (40.3) | 119 (26.2) | 143 (47.7) | 215 (34.1) | 18 (5.6) | 284 (6.8) | 51 (8.1) | 18 (3.2) | 943 (12.7) |
| Male | 40 (100.0) | 66 (86.8) | 126 (59.7) | 335 (73.8) | 157 (52.5) | 416 (65.9) | 301 (94.4) | 3,896 (93.2) | 578 (91.9) | 542 (96.8) | 6,457 (87.3) |
| Age group, years | |||||||||||
| 20 to 29 | 0 (0.0) | 2 (3.4) | 9 (5.1) | 23 (5.9) | 46 (19.0) | 30 (6.4) | 10 (5.7) | 156 (4.9) | 28 (5.5) | 24 (6.2) | 328 (5.8) |
| 30 to 39 | 7 (22.6) | 7 (12.1) | 38 (21.6) | 58 (14.8) | 56 (23.2) | 82 (17.6) | 23 (13.0) | 579 (18.2) | 85 (16.7) | 68 (17.6) | 1,003 (17.9) |
| 40 to 49 | 14 (45.1) | 28 (48.3) | 70 (39.8) | 142 (36.2) | 79 (32.6) | 145 (31.1) | 45 (25.6) | 1,088 (34.2) | 169 (33.1) | 122 (31.5) | 1,902 (33.9) |
| 50 to 59 | 10 (32.3) | 21 (36.2) | 59 (33.5) | 169 (43.1) | 61 (25.2) | 209 (44.9) | 98 (55.7) | 1,357 (42.7) | 228 (44.7) | 173 (44.7) | 2,385 (42.4) |
| Skin color | |||||||||||
| Ignored/blank | 17 (42.5) | 19 (25) | 36 (17) | 98 (21) | 70 (23.3) | 127 (20.1) | 42 (13.2) | 964 (23.1) | 186 (29.6) | 152 (271) | 1,711 (23.1) |
| White | 14 (35) | 42 (55.3) | 120 (56.6) | 209 (44.8) | 123 (41) | 269 (42.6) | 201 (63) | 1,851 (44.3) | 286 (45.5) | 254 (45.4) | 3,369 (45.4) |
| Black | 5 (12.5) | 2 (2.6) | 11 (5.2) | 24 (5.2) | 11 (3.7) | 36 (5.7) | 15 (4.7) | 231 (5.5) | 36 (5.7) | 29 (5.2) | 400 (5.4) |
| Asian | 2 (5) | 0 (0) | 4 (1.9) | 8 (1.7) | 5 (1.7) | 37 (5.9) | 6 (1.9) | 72 (1.7) | 9 (1.4) | 12 (2.1) | 155 (2.1) |
| Mixed-race | 2 (5) | 13 (171) | 41 (19.3) | 126 (27) | 90 (30) | 157 (24.9) | 52 (16.3) | 1,054 (25.2) | 111 (17.6) | 113 (20.2) | 1,759 (23.7) |
| Indigenous | 0 (0) | 0 (0) | 0 (0) | 1 (0.3) | 1 (0.3) | 5 (0.8) | 3 (0.9) | 8 (0.2) | 1 (0.2) | 0 (0) | 19 (0.3) |
| Educational level | |||||||||||
| Ignored/blank | 24 (60) | 39 (51.3) | 60 (28.4) | 161 (34.6) | 107 (35.7) | 244 (38.7) | 113 (35.4) | 1,509 (36.1) | 279 (44.4) | 248 (44.3) | 2,784 (37.6) |
| Illiterate | 0 (0.0) | 0 (0.0) | 1 (0.5) | 0 (0.0) | 1 (0.3) | 10 (1.6) | 6 (1.9) | 26 (0.6) | 5 (0.8) | 2 (0.4) | 51 (0.7) |
| Incomplete 1st to 4th grade of elementary school | 1 (2.5) | 1 (1.3) | 1 (0.5) | 15 (3.2) | 9 (3) | 36 (5.7) | 37 (11.6) | 407 (9.7) | 51 (8.1) | 41 (7.3) | 599 (8) |
| Complete 4th grade of elementary school | 1 (2.5) | 3 (3.9) | 5 (2.4) | 8 (1.7) | 8 (2.7) | 34 (5.4) | 41 (12.9) | 386 (9.2) | 33 (5.3) | 34 (6) | 553 (7, 5) |
| Incomplete 5th to 8th grade of elementary school | 0 (0.0) | 4 (5.3) | 3 (1.4) | 24 (5.2) | 26 (8.7) | 79 (12.5) | 62 (19.4) | 608 (14.6) | 53 (8.4) | 49 (8.8) | 908 (12.3) |
| Complete elementary school | 1 (2.5) | 4 (5.3) | 7 (3.3) | 22 (4.7) | 20 (6.7) | 59 (9.3) | 25 (7.8) | 397 (9.5) | 45 (7.2) | 39 (7) | 619 (8.4) |
| Incomplete secondary school | 2 (5) | 1 (1.3) | 3 (1.4) | 22 (4.7) | 14 (4.6) | 22 (3.5) | 10 (3.1) | 172 (4.1) | 26 (4.1) | 20 (3.6) | 292 (3.9) |
| Complete secondary school | 7 (17.5) | 14 (18.4) | 24 (11.4) | 139 (29.8) | 78 (26) | 102 (16.2) | 18 (5.6) | 571 (13.7) | 116 (18.5) | 104 (18.6) | 1,173 (15.8) |
| Incomplete superior education | 1 (2.5) | 0 (0.0) | 6 (2.8) | 22 (4.7) | 20 (6.7) | 15 (2.4) | 1 (0.3) | 25 (0.6) | 4 (0.6) | 7 (1.2) | 101 (1.4) |
| Complete superior education | 3 (7.5) | 9 (11.9) | 101 (47.9) | 52 (11.2) | 15 (5) | 26 (4.1) | 4 (1.4) | 44 (1.1) | 11 (1.7) | 12 (2.1) | 277 (3.7) |
| Not applicable | 0 (0.0) | 1 (1.3) | 0 (0.0) | 1 (0.2) | 2 (0.6) | 4 (0.6) | 2 (0.6) | 35 (0.8) | 6 (0.9) | 4 (0.7) | 55 (0.7) |
0 = members of the armed forces, police, and military firefighters; 1 = members of the legislature, executive branch, or judiciary, senior public administration officials, senior managers of companies; 2 = scientists, artists, and similar workers; 3 = mid-level technicians; 4 = administrative service workers; 5 = workers in commerce and similar workers; 6 = workers in agriculture, forestry, and fishery; 7 = workers in industrial production; 8 = workers in industrial production; 9 = workers in repair and maintenance services.