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Table 4 Odds ratios (95 % confidence intervals) of AOM associated with different demographic and clinical characteristics of the child

From: Incidence of acute otitis media in children below 6 years of age seen in medical practices in five East European countries

Characteristics

Categories

Crude OR (95 % CI)

Adjusted OR (95 % CI)

Age [Months]

-

1.02 (1.01–1.03)

1.00 (0.99–1.01)

Gender

Male

Reference

Reference

Female

1.02 (0.79–1.31)

1.02 (0.79–1.32)

Child receive at least one dose of a Pneumococcal vaccine

No

Reference

Reference

Yes

0.98 (0.74–1.29)

1.04 (0.78–1.38)

Breast-fed

No

Reference

Reference

Yes

0.12 (0.05–0.26)

0.19 (0.08–0.44)

Number of household siblings

0

Reference

Reference

≥ 1

1.38 (1.06–1.81)

1.20 (0.91–1.58)

Child care/school attendance

No

Reference

Reference

Yes

2.68 (2.03–3.54)

1.92 (1.35–2.75)

Premature (< 37 weeks gestation)

No

Reference

Reference

Yes

0.73 (0.38–1.42)

0.76 (0.39–1.49)

Allergies

No

Reference

Reference

Yes

1.80 (1.22–2.66)

1.64 (1.09–2.45)

Child regularly exposed to cigarettes smoke indoors

No

Reference

Reference

Yes

1.04 (0.66–1.62)

1.02 (0.65–1.62)

  1. AOM acute otitis media, CI confidence interval, OR odds ratio, 95 % CI of OR 95 % Wald confidence interval of odds ratio