TABLE 4.

Logistic regression modeling of the association between persistent positive CMV cultures and delayed hearing loss^*

	Delayed hearing loss OR (95% CI)
A
Age at last culture-positive visit	1.05 (1.01–1.08)b
Type of neonatal infection
Asymptomatic	1
Symptomatic	5.9 (1.8–18.9)
Age at last hearing evaluation	0.99 (0.96–1.01)†
Number of viral culture visits	0.87 (0.59–1.30)‡
B
Number of culture-positive visits	1.05 (0.66–1.69)‡
Type of neonatal infection
Asymptomatic	1
Symptomatic	4.4 (1.5–12.6)
Age at last hearing evaluation	1.00 (0.98–1.02)†
Number of viral culture visits	0.96 (0.64–1.43)‡

^*The 21 children with delayed hearing loss were matched 3-to-1 by age at last hearing evaluation with 63 randomly selected children who did not develop hearing loss. Model A used age at last culture-positive visit as the exposure variable. Model B used number of culture-positive visits as the exposure variable. The other covariates were the same for the two models.

^†Comparing 1-month age differences.

^‡Comparing 1-visit differences.

CMV, cytomegalovirus; OR, odds ratio; CI, confidence interval.