Table 3.
Number (%) of subjects or median (IQR) for each of the baseline variables by age grouping.
| All | 18–34 | 35–44 | 45–54 | 55–64 | 65–93 | P-value | |
|---|---|---|---|---|---|---|---|
| (n = 543) | (n = 81) | (n = 80) | (n = 94) | (n = 120) | (n = 168) | ||
| Female | 304 (56.0) | 53 (65.4) | 50 (62.5) | 59 (62.8) | 54 (45.0) | 88 (52.4) | 0.012 |
| Right hand side implant | 313 (57.6) | 59 (72.8) | 52 (65.0) | 54 (57.4) | 54 (45.0) | 94 (56.0) | 0.002 |
| Additional handicap | 42 (7.8) | 5 (6.2) | 6 (7.6) | 3 (3.2) | 11 (9.2) | 17 (10.3) | 0.302 |
| HL degree (implant ear) | 0.163 | ||||||
| Mild-moderately severe | 26 (5.0) | 2 (2.5) | 2 (2.7) | 2 (2.3) | 8 (6.8) | 12 (7.5) | |
| Severe | 117 (22.5) | 18 (22.5) | 11 (14.7) | 19 (22.1) | 26 (22.2) | 43 (27.0) | |
| Profound | 374 (72.3) | 60 (75.0) | 62 (82.7) | 65 (75.6) | 83 (70.9) | 104 (65.4) | |
| HL degree (non-implant ear) | 0.032* | ||||||
| Normal | 28 (5.5) | 4 (5.1) | 4 (5.4) | 8 (9.3) | 8 (6.9) | 4 (2.6) | |
| Mild-moderately severe | 82 (16.1) | 7 (9.0) | 7 (9.5) | 12 (14.0) | 22 (19.0) | 34 (21.8) | |
| Severe | 133 (26.1) | 22 (28.2) | 14 (18.9) | 29 (33.7) | 27 (23.3) | 41 (26.3) | |
| Profound | 267 (52.4) | 45 (57.7) | 49 (66.2) | 37 (43.0) | 59 (50.9) | 77 (49.4) | |
| Presence of tinnitus | 283 (53.2) | 33 (42.9) | 46 (59.0) | 58 (62.4) | 62 (51.7) | 84 (51.2) | 0.127 |
| Presence of dizziness | 238 (44.7) | 27 (35.1) | 29 (37.2) | 48 (51.6) | 55 (45.8) | 79 (48.2) | 0.119 |
| Hearing aid (implant ear) | 329 (60.6) | 49 (60.5) | 50 (62.5) | 53 (56.4) | 71 (59.2) | 106 (63.1) | 0.851 |
| Hearing aid (non-implant ear) | 338 (62.2) | 46 (56.8) | 45 (56.2) | 65 (69.1) | 72 (60.0) | 110 (65.5) | 0.271 |
| Telephone use | 281 (52.8) | 43 (55.8) | 39 (50.0) | 55 (59.1) | 68 (56.7) | 76 (46.3) | 0.240 |
| Median duration of HL (years) | 21 (25) | 21 (15) | 28 (31) | 20 (26) | 17 (34.5) | 20 (19) | 0.661 |
P-values are from chi-squared tests for categorical variables and analysis of variance for continuous variables; HL, hearing loss; IQR, interquartile range; *Fisher’s exact test used because of small counts.