Table 3.

Comparison of variables in impaired ABR and normal ABR

Risk factors	Impaired ABR result	Normal ABR result	P-value
Sex (male)	44.4	52.7	0.7
Age of father (mean + SD)	30.4 (4.0)	32.5 (5.5)	0.3
The age of mother(mean + SD)	26.8 (5.0)	28.2 (5.0)	0.4
Mild hyperbilirubinemia	33.3	41.4	0.7
Severe hyperbilirubinemia	0.00	1.0	1.0
Hearing loss history in siblings	0.00	1.1	1.0
Hearing loss history in family	11.1	4.0	0.3
Drug consuming during pregnancy	2.22	12.8	0.3
NICU history	11.0	10.0	1.0
History of disease in other children	12.5	2.5	0.2
History of convulsion	0.00	1.7	1.0
Antibiotic consuming	11.1	18.7	1.0