TABLE 2.

The crude and adjusted regression coefficient (β) and 95% confidence interval (CI) for final hearing, absolute and relative hearing gain in relation to TBIL and DBIL in full sample

	Crude		Adjusted*
	β (95% CI)	p	β (95% CI)	p
Final hearing
TBIL (per 1 μmol/L)	−1.8 (−2.9, −0.6)	0.003	−0.3 (−0.9, 0.3)	0.289
TBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	−10.8 (−23.4, 1.9)	0.094	2.6 (−4.0, 9.2)	0.437
T3	−17.3 (−29.6, −4.9)	0.006	−2.6 (−8.5, 3.4)	0.394
DBIL (per 1 μmol/L)	−1.6 (−6.0, 2.8)	0.469	0.1 (−2.1, 2.3)	0.896
DBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	−3.9 (−15.8, 8.1)	0.525	−1.4 (−8.4, 5.6)	0.697
T3	−3.4 (−17.2, 10.4)	0.624	−0.7 (−9.2, 7.7)	0.868
Absolute hearing gain
TBIL (per 1 μmol/L)	0.2 (−0.5, 0.9)	0.551	0.3 (−0.3, 0.9)	0.299
TBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	−1.1 (−7.6, 5.4)	0.744	−3.1 (−9.5, 3.2)	0.337
T3	2.3 (−4.8, 9.5)	0.522	2.3 (−3.6, 8.2)	0.435
DBIL (per 1 μmol/L)	−0.1 (−2.2, 2.0)	0.925	−0.2 (−2.4, 2.0)	0.845
DBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	0.0 (−6.5, 6.4)	0.989	0.8 (−5.9, 7.4)	0.825
T3	0.9 (−6.3, 8.0)	0.808	0.3 (−8.0, 8.5)	0.950
Relative hearing gain
TBIL (per 1 μmol/L)	0.6 (−0.4, 1.5)	0.261	0.3 (−0.5, 1.2)	0.417
TBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	2.9 (−6.9, 12.7)	0.568	−1.3 (−10.3, 7.7)	0.774
T3	6.6 (−3.0, 16.3)	0.178	4.0 (−4.3, 12.4)	0.347
DBIL (per 1 μmol/L)	0.2 (−2.8, 3.1)	0.913	−0.1 (−2.9, 2.8)	0.962
DBIL tertiles
T1	0 [Reference]		0 [Reference]
T2	1.3 (−8.1, 10.6)	0.788	3.5 (−5.8, 12.8)	0.456
T3	1.9 (−8.4, 12.2)	0.722	2.4 (−8.3, 13.1)	0.657

^*Adjusted for age, sex, time duration, audiogram, alcohol use, diabetes, preceding infection, baseline hearing level, magnesium, hematocrit, alkaline phosphatase, low-density lipoprotein cholesterol, neutrophil, and platelet.

DBIL indicates direct bilirubin levels; TBIL, total bilirubin levels.