Table 1.
Analysis of clinical variables according to use of personal stereo devices.
| Variable | Group 1 (uses personal stereo devices) (n = 54) | Group 2 (non-users of personal stereo devices) (n = 46) | p value | ||
|---|---|---|---|---|---|
| n | % | n | % | ||
| Male gender | 22 | 40.7 | 24 | 52,2 | 0.25 |
| Hypoacusis | 18 | 33.3 | 3 | 6,5 | 0.001 |
| Tinnitus | 14 | 25.9 | 4 | 8,7 | 0.025 |
| Fullness | 13 | 24.1 | 4 | 8,7 | 0.041 |
| Dizziness | 16 | 29.6 | 6 | 13,0 | 0.046 |
| Other diseases | 6 | 11.1 | 5 | 10,9 | 0.96 |
| Family history of deafness | 12 | 22.2 | 7 | 15,2 | 0.37 |
| Smoking | 2 | 3.7 | 2 | 4,4 | fc |
| Excessive use of caffeine | 23 | 42.6 | 13 | 28,3 | 0.13 |
| Alcohol | 8 | 14.8 | 10 | 21,74 | 0.36 |
| Age (years) | 17.5 ± 2.2 | 21,3 ± 4,7 | < 0.001 | ||
| THI (score) | 15.4 ± 11.9 (12) | 16,0 ± 13,8 (12) | 0.99 | ||
Age expressed as mean ± standard deviation. Compared using Student's t test.
THI expressed as mean ± standard deviation (median). C Compared using the Mann-Whitney test; 14 patients in group 1, and 4 patients in group 2. fc: few cases < 5 smokers.