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Table 3 Longitudinal analyses of ear infection in preceding wave and subsequent ear infections by indigenous status

From: Longitudinal analysis of ear infection and hearing impairment: findings from 6-year prospective cohorts of Australian children

  Non-indigenous children - AOR [95% CI] ear infections between wave*
2/3 years 4/5 years 6/7 years 10/11 years
B cohort     
0/1 No ref ref ref  
  Yes 7.6 [5.1-11.3] 4.6 [2.9-7.4] 1.9 [1.0-3.7]  
2/3 No   ref ref  
Yes   8.0 [5.5-11.6] 4.1 [2.5-6.8]  
4/5 No    ref  
  Yes    12.3 [8.0-18.9]  
K cohort     
4/5 No    ref ref
Yes    9.3 [6.8-12.6] 6.5 [4.2-9.9]
6/7 No     ref
Yes     17.7 [11.2-26.4]
  Indigenous children - AOR [95% CI] reported ear infections between wave*
2/3 years 4/5 years 6/7 years 10/11 years
B cohort     
0/1 No ref ref ref  
  Yes 2.8 [0.6-13.1] 4.7 [1.1-20.5] 1.4 [0.09-22.4]  
2/3 No   ref ref  
Yes   9.4 [1.7-51.8] 3.4 [0.39-29.7]  
4/5 No    ref  
  Yes    25.3 [4.6-139.7]  
K cohort     
4/5 No    ref ref
Yes    9.8 [1.6-59.3] 10.1 [2.4-42.9]
6/7 No     ref
Yes     17.5 [1.1-287.9]
  1. * Adjusted Odds Ratios (AOR) and 95% Confidence Interval [95% CI]; Confounder variables were sex, employment and school completion of parents, remoteness, and SEIFA economic resource (shown in Table 1).