- Distribution of studied patients according to peri natal history, vaccination status, auditory brainstem response (ABR)– pure-tone audiometry (PTA) (N=133).
| Variable | n (%) |
|---|---|
| Abnormal perinatal history | |
| No | 109 (82) |
| Yes | 24 (18) |
| If abnormal perinatal history, specify: (n=24) | |
| Birth asphyxia | 4 (16.6) |
| Infection during pregnancy | 4 (16.6) |
| NICU admission | 17 (70.8) |
| Cytomegalovirus | 2 (8.3) |
| High grade fever and meningitis | 3 (12.5) |
| Prematurity | 5 (20.8) |
| Congenital anomaly | 4 (16.6) |
| Vaccination status | |
| Needing vaccines pre-operative | 28 (21.1) |
| Vaccinated up to date at time of presentation | 105 (78.9) |
| ABR – PTA | |
| Bilateral profound SNHL | 97 (72.9) |
| Bilateral severe to profound SNHL | 1 (0.8) |
| Bilateral severe to profound SNHL with DLD | 2 (1.5) |
| Bilateral total hearing loss | 5 (3.8) |
| Bilateral total SNHL | 19 (14.3) |
| Left total hearing loss and right moderately severe hearing loss | 1 (0.8) |
| Right profound SNHL and left total SNHL | 2 (1.5) |
| Right severe SNHL and left severe to profound SNHL | 2 (1.5) |
| Right side had channels working and open circuit | 1 (0.8) |
| Right total hearing loss and left severe MHL with excellent speech | 1 (0.8) |
| Right total SNHL | 1 (0.8) |
NICU: neonatal intensive care unit, DLD: Dihydrolipoamide dehydrogenase, SNHL: sensory neural hearing loss