1. Four-year incidence of allergic sensitization among schoolchildren in a community where allergy to cat and dog dominates sensitization 
Eva Rönmark, PhD, Matthew Perzanowski, MPH, Thomas Platts-Mills, MD, PhD, Bo Lundbäck, MD, PhD 
Journal of Allergy and Clinical Immunology 
Volume 112, Issue 4, Pages (October 2003)
DOI: /S (03)

2. FIG 1
Prospective incidence study of positive skin test responses over 4 years beginning at age 7 to 8 years. Data on furred pets at home during the first 2 years of life were obtained by recall when the child was 7 to 8 years old. Ever cat in 1996: rural 41%, urban 35%; Luleå 39%, Kiruna 27%. Ever dog in 1996: rural 60%, urban 47%; Luleå 43%, Kiruna 62%.
Journal of Allergy and Clinical Immunology  , DOI: ( /S (03) )

3. FIG 2
Prevalence (percentage) of positive skin test responses in 1996 (age 7-8 years) and in 2000 (age years): difference by sex and study year. Significant differences: ∗P < .05; ∗∗P < .01; ∗∗∗P < .001.
Journal of Allergy and Clinical Immunology  , DOI: ( /S (03) )