Table 4.

Comparisons of Characteristics and Procedures of Children in the United States by Year, 1981 and 1988

19811988OR95% CIP Value
All children <6 years
 Recurrent otitis media18.7%26.9%<.001
 Day care/nursery11%21%<.001
 Maternal employment40%51%<.001
 Ear operation 1.3% 2.4%<.001
In infants <1 year
 Recurrent otitis media 5.6%10.3%
 Day care/nursery 2% 5%
 Allergies 7%12%
 Maternal employment33%45%<.001
 Ear operation 0.2% 0.5%2.70.325.8.36
  • Abbreviations: OR, odds ratio; CI, confidence interval; OOHC/US, out-of-home care by an unrelated sitter.