| effect of cat and dog ownership on sensitization and development of asthma among preteenage children. | an inverse relationship has been proposed between exposure to high quantities of cat allergen at home and both asthma and cat allergy. first- and second-grade children from luleå, kiruna, and piteå, sweden participated in an asthma questionnaire study (n = 3,431) and incidence was evaluated over the next 3 years. skin testing was performed on the children in luleå and kiruna (n = 2,149). the strongest risk factor for incident cases of asthma was type 1 allergy (relative risk [rr], 4.9 [2.9-8.4]) ... | 2002 | 12204868 |
| relevance of allergens from cats and dogs to asthma in the northernmost province of sweden: schools as a major site of exposure. | the prevalence of asthma in the northernmost region of sweden has been estimated at 6% to 8% in spite of the very dry climate. the causes of the increase in asthma are not clear, but conditions are unfavorable for dust mite growth, and domestic animals are thought to be the primary source of indoor allergens. | 1999 | 10359880 |