TABLE 3.
Prevalence of hearing loss and tinnitus in the current study in comparison to previous studies.
| Symptom | Current study (n = 60) |
Chandrasekhar et al. (2000) (n = 51) |
Khoza and Ross (2002) (n = 150) |
Van der Westhuizen et al. (2013) (n = 200) |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | n | p | % | n | p | % | n | p | % | n | p | |
| Hearing loss | 10 | 6 | - | 29 | 15 | 0.0135* | 23 | 35 | 0.0333* | 14 | 28 | 0.5163 |
| Tinnitus | 57 | 34 | - | 26 | 13 | 0.0018* | 23 | 35 | <0.0001* | 26 | 52 | <0.0001* |
*
, Statistically significant (≤ 0.05 p-values were considered significant; Fisher’s exact test) when compared to the prevalence of the current study.