Table 1

Geometric means of total and relative weight of house dust mite allergen Der p I in fine dust taken from pillows with synthetic and feather fillings

Pillow filling
SyntheticFeatherMean ratio (95% confidence interval) of weights (synthetic: feather)
Weight of Der p I:
  Total (μg)1.010.138.05 (1.69 to 38.2)
  Relative (μg/g fine dust)22.286.243.57 (1.13 to 11.27)