Table A1.
Probable causes of hearing loss in the population for all-ages and those aged 40 and 50 plus.
| Cause | India | Cameroon | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All ages (N = 160) | Age 30+ (N = 145) | Aged 40+ (N = 132) | Aged 50+ (N = 116) | All ages (N = 131) | Age 30+ (N = 100) | Aged 40+ (N = 98) | Aged 50+ (N = 94) | |||||||||
| N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | N | % (95%CI) | |
| Probable conductive causes | ||||||||||||||||
| Impacted wax | 1 | 0.6 (0.08,4.6) | 1 | 0.7 (0.08,5.09) | 1 | 0.7 (0.09, 5.7) | 1 | 0.9 (0.1, 6.4) | 40 | 30.5 (21.3, 41.6.) | 34 | 34.0 (24.3, 45.2) | 33 | 33.7 (23.7, 45.4) | 31 | 33.0 (23.2, 44.5) |
| Otitis Externa | 0 | - | 0 | - | 0 | - | 0 | - | 1 | 0.8 (0.1, 5.4) | 1 | 1.0 (0.1, 6.9) | 1 | 1.0 (0.1, 7.1) | 1 | 1.1 (0.1, 7.3) |
| AOM | 0 | - | 0 | - | 0 | - | 0 | - | 1 | 0.8 (0.1, 5.5) | 0 | - | 0 | - | 0 | - |
| CSOM | 11 | 6.9 (3.1, 12.3) | 11 | 7.6 (4.1, 13.5) | 10 | 7.5 (3.9, 14.1) | 8 | 6.9 (3.4, 13.3) | 4 | 3.1 (1.2, 7.7) | 2 | 2.0 (0.5, 7.9) | 2 | 2.0 (0.5, 8.1) | 2 | 2.1 (0.5, 8.5) |
| OME | 4 | 2.5 (0.9,6.5) | 4 | 2.8 (1.0, 7.1) | 3 | 2.3 (0.7, 6.9) | 3 | 2.6 (0.8, 7.8) | 0 | - | 0 | - | 0 | - | 0 | - |
| Dry perforation | 9 | 5.6 (3.0, 10.3) | 9 | 6.2 (3.3, 11.4) | 6 | 5.4 (2.0, 9.8) | 4 | 3.4 (1.3, 8.9) | 1 | 0.8 (0.1, 5.4) | 0 | - | 0 | - | 0 | - |
| Total | 25 | 15.6 (10.7, 22.3) | 25 | 17.2 (11.8, 24.5) | 20 | 15.2 (10.1, 22.1) | 16 | 13.8 (8.8, 21.1) | 47 | 35.9 (27.1) | 37 | 37.0 (28.2, 46.8) | 35 | 35.7 (27.6, 47.0) | 34 | 36.2 (27.0, 46.4) |
| Probable sensorineural causes | ||||||||||||||||
| Non-infectious | 37 | 23.1 (17.0, 32.1) | 33 | 22.8 (16.3, 30.8) | 29 | 21.9 (15.4, 30.3) | 24 | 20.7 (14.1, 29.4) | 2 | 1.5 (0.4, 5.9) | 2 | 2.0 (0.5, 7.6) | 2 | 2. (0.5, 7.7) | 2 | 2.1 (0.5, 8.0) |
| Infectious | 0 | - | 0 | - | 0 | - | 0 | - | 1 | 0.8 (0.09, 5.8) | 0 | - | 0 | - | 0 | - |
| Genetic | 0 | - | 0 | - | 0 | - | 0 | - | 1 | 0.8 (0.09, 5.7) | 1 | 1.0 (0.1, 7.4) | 0 | - | 0 | - |
| Congenital | 1 | 0.6 (0.08, 4.5) | 0 | - | 0 | - | 0 | - | 0 | - | 0 | - | 0 | - | 0 | - |
| Undetermined age-related * | 57 | 35.6 (26.0, 46.6) | 57 | 39.3 (28.5, 51.2) | 57 | 43.2 (31.7, 55.4) | 57 | 49.1 (36.5, 61.9) | 29 | 22.1 (15.1, 31.2) | 29 | 29.0 (19.3, 41.1) | 29 | 29.6 (19.7, 41.9) | 29 | 30.9 (20.7, 43.3) |
| Undetermined | 37 | 23.1 (16.3, 31.8) | 30 | 20.7 (13.2, 30.9) | 26 | 19.6 (11.9, 30.8) | 19 | 16.4 (8.6, 28.9) | 48 | 36.6 (25.7, 49.2) | 31 | 31.0 (20.7, 43.6) | 31 | 31.6 (21.1, 44.5) | 29 | 30.9 (20.3, 43.8) |
| Total | 132 | 82.5 (75.9, 87.6) | 120 | 82.8 (75.5, 88.2) | 112 | 84.8 (77.9, 89.9) | 100 | 86.2 (78.9, 91.2) | 81 | 61.0 (50.6, 71.8) | 63 | 63.0 (53.2, 71.8) | 62 | 63.3 (53.0, 72.4) | 60 | 63.8 (53.6, 73.0) |
| Missing data | 3 | 1.8 | 0 | - | 0 | - | 0 | - | 3 | 2.3 | 0 | - | 0 | - | - | - |