Table 3

Change in prevalence (%) of symptoms in atopic3-150 and non-atopic children, 1992–1997

  • 3-150 Atopic to at least one of D pteronyssinus, rye grass, Alternaria.

  • 3-151 Proportional increase = ((1997 prevalence − 1992 prevalence)/1992 prevalence) × 100.