Data for means were presented ± standard deviation.
Paired samples were compared using the Student’s t test.
Reactions with an induration 3 mm that of the negative control were considered positive.
Sixty two percent of American households and a smaller proportion of the European population have one or more domestic pet [10,11].
Skin prick tests were performed on 784 children and 562 (71.7%) of them showed a positive response to at least one allergen.
Of these, 62 (11%) had a positive response with cat and 54 (87.0%) of them had another positive skin prick test response to at least one more allergen, mainly to house dust mites (Table 1).
Concentrations were expressed as nanogram in a gram of sampled dust .
The study was approved by the ethical committe of Maltepe University School of Medicine.