Table 7.

Multivariate analyses-auditory evaluation- 12 months and at 20 years.

Multivariate analysis-auditory evaluation 12 months Remarks = 371 LR Chi2 (2) = 17.87 Pseudo R2 = 0.51 p > chi2 <0.01
Outcome variable: Uni- or bilateral hearing loss at 12 months of age	Raw OR 95% CI	Adjusted OR 95% CI	p
Days in invasive mechanical ventilation	1.22 [0.97, 1.54]	1.36 [0.98, 1.87]	<0.01
Auditory and language development score at 6 months (Griffiths’ test)	0.92 [0.88, 0.96]	0.91 [0.87, 0.96]	0.06

Multivariate analysis-auditory evaluation 20 years Remarks = 438 LR Chi2 (1) = 15.75 Pseudo R2 = 0.06 p > chi2 < 0.01
Outcome variable: Uni- or bilateral hearing loss at 20 years.	Raw OR 95% CI	Adjusted OR 95% CI	p
Days in NICU	1.07 [1.03, 1.11]	1.06 [1.02, 1.10]	<0.01
Auditory and language development score at 6 months (Griffiths’ Test)	0.96 [0.94, 0.98]	0.96 [0.94, 0.98]	<0.01

LR, Likelihood ratio. Chi2, Chi2 test. OR, Odds ratio. CI, confidence Interval.