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Distribution of cochlear types for different types of mutations
| Cochlear type | Normal | IPIIa | Hypoplasia type III | Hypoplasia type IV |
|---|---|---|---|---|
| Total | 49 (61.2 %) | 7 (8.3 %) | 3 (3.8 %) | 21 (26.3 %) |
| Truncating mutations | 27 (33.8 %) | 6 (7.5 %) | 3 (3.8 %) | 14 (17.5 %) |
| Non-truncating mutations | 22 (27.5 %) | 1 (1.3 %) | 0 | 7 (8.8 %) |
Number of ears: 80 (patients 12 and 30 excluded)
aIncomplete partition type II without enlarged vestibular aqueduct or dilated vestibulum; P = 0.194 (χ2)
