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Table 1 Demography of participants in the SPT in 1994 and 2009

From: Increase in sensitization to common airborne allergens among adults – two population-based studies 15 years apart

  Study year   
  1994 2009 p-value
  n = 483 n = 463  
Mean age (SD) 44.05 (9.73) 44.57 (10.54) 0.436
Men, n (%) 237 (49.1) 233 (50.3) 0.699
Age group, n (%)    
 20-29 y 47 (9.7) 56 (12.1) 0.081
 30-39 y 109 (22.6) 87 (18.8)
 40-49 y 163 (33.7) 135 (29.2)
 50-60 y 164 (34.0) 185 (40.0)
Family history of allergic rhinitis (%) 33.9 32 0.544
Ever smoker (%) 57.1 45.6 <0.001
Furry animals in cildhood (%) 77.5 63.7 <0.001
Urban living in childhood (%) 32.5 54.5 <0.001
Urban living (%) 68.1 72.2 0.174