Table 2: Clinical characteristics of groups of children with SNHL and BNH with Exchange transfusion ( ).

VariableSNHL group (n = 15) BNH group (n = 87)
n Average ± SDRange n Average ± SDRangeU M-WaP

Gestational age (weeks)1533.7 ± 2.130–39.58735.2 ± 3.326–40.64250.03a
Birthweight (g)151927 ± 581910–2,975872,218 ± 790790–37955140.19a
1 min Apgar score 156.4 ± 1.71–9876.7 ± 2.2 2–94970.12a
5 min Apgar score158.3 ± 0.81–9878.5 ± 1.04–95040.08a
Mechanical ventilation (days)55 ± 41–1422 5 ± 21–2046.50.58a
Hospital stay (days)15 31 ± 26 7–9687 20 ± 185–1024690.08a
Phototherapy (days)15 5.5 ± 0.7 4–6875.5 ± 1.41–106370.87a
Indirect bilirubin (mg/dL)15 22.2 ± 5.7 14.7–35.68718.7 ± 5.36.8–35.84510.05a
Age at follow-up (years)15 6.7 ± 2.3 2–1087 5 ± 3.71–105660.41a
Male960%4248%0.40**
Female640%4552%
Term infant1 7%3439%0.01**
Premature infant14 93%5361%

SNHL: sensorineural hearing loss. BNH: bilateral normal hearing. n: number of cases. SD: standard deviation. a M-W: of Mann-Whitney test, ** .