Table 2.
Comparison of demographic characteristics and outcome performances according to different etiologies.
| Non-Syndromic SNHI N = 81 |
Syndromic SNHI N = 17 |
CND N = 20 |
Other IEMs N = 11 |
cCMV Infection N = 4 |
Unknown Etiology N = 27 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | p Value | |
| Number | % | Number | % | Number | % | Number | % | Number | % | Number | % | ||
| OP age, y | 4.4 | 3.8 | 7.8 | 5.6 | 4.3 | 4.9 | 4.1 | 4.4 | 2.4 | 0.9 | 5.9 | 5.6 | 0.242 |
| Gender | 0.176 | ||||||||||||
| Female | 35 | 43.2 | 10 | 58.8 | 6 | 30.0 | 6 | 54.5 | 2 | 50.0 | 17 | 63.0 | |
| Male | 46 | 56.8 | 7 | 41.2 | 14 | 70.0 | 5 | 45.5 | 2 | 50.0 | 10 | 37.0 | |
| Laterality | 0.205 | ||||||||||||
| Unilateral | 47 | 58.0 | 11 | 58.8 | 15 | 75.0 | 6 | 54.5 | 2 | 50.0 | 15 | 55.6 | |
| Bilateral | 34 | 42.0 | 6 | 41.2 | 5 | 25.0 | 5 | 45.5 | 2 | 50.0 | 12 | 44.4 | |
| F/U months | 27.8 | 22.0 | 20.5 | 12.3 | 19.6 | 15.0 | 25.6 | 21.4 | 39.5 | 31.9 | 32.0 | 29.9 | 0.337 |
| CAP | 5.9 | 1.5 | 4.4 | 2.0 | 3.1 | 2.1 | 5.6 | 1.2 | 4.5 | 1.3 | 5.9 | 1.1 | <0.001 * |
| SIR | 4.0 | 1.4 | 3.4 | 1.4 | 1.7 | 1.0 | 3.0 | 1.5 | 2.3 | 1.9 | 3.8 | 1.3 | <0.001 # |
Chi-square test/Independent-Samples Kruskal–Wallis Test; * Non syndromic = IEM = Unknown> Syndromic > CND; # Non syndromic = Syndromic = IEM = Unknown> CND. The cCMV infection group was excluded for statistical analysis due to limited cases. Abbreviations: CAP, categories of auditory performance; cCMV, congenital cytomegalovirus; CND, cochlear nerve deficiency; F/U, follow up; IEMs, inner ear malformations; SIR, speech intelligibility rating scale; SNHI, sensorineural hearing impairment; y, years old.