Table 3—

Adjusted prevalence of asthma, hay fever, atopic eczema and allergic sensitization by birth cohort and survey

Year
19811984198719901993
Hay fever
 Age
  6 yrs2.1#2.32.3+
  9 yrs4.1#4.05.0+
  12 yrs5.4#5.96.1+
Asthma
 Age
  6 yrs2.1#2.73.9+
  9 yrs2.1#2.24.6+
  12 yrs2.2#3.03.6+
Eczema
 Age
  6 yrs8.6#11.013.0+
  9 yrs8.6#9.911.8+
  12 yrs9.6#9.110.2+
Strong allergic sensitization any IgE >17.5 kU·L−1
 Age
  Age of 6 yrs3.9#7.47.1+
  Age of 9 yrs8.1#8.711.9+
  Age of 12 yrs10.2#11.610.3+

  • Data are presented as %

  • #: first survey in 1992–1993

  • : second survey in 1995–1996

  • +: third survey in 1998–1999