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Table 2 Prevalence (%) of allergic sensitization by sex, area and age group

From: Sensitization to airborne allergens among adults and its impact on allergic symptoms: a population survey in northern Vietnam

Allergens Sex   Area   Age  
Male Female Difference, p-value Hoankiem Bavi Difference, p-value ≤45 y >45 y Difference, p-value
n = 249 n = 284   n = 179 n = 354   n = 278 n = 255
Cat 5.2 3.9 0.454 5.6 4.0 0.391 5.4 3.5 0.299
Dog 3.6 3.9 0.875 6.1 2.5 0.039 4.7 2.7 0.241
Any animal 8.0 5.6 0.271 9.5 5.4 0.073 7.9 5.5 0.265
Cockroach 16.5 10.2 0.033 11.7 13.8 0.496 15.1 11.0 0.159
D. pteronyssinus 16.5 10.6 0.045 19.0 10.5 0.006 16.9 9.4 0.011
D. farinae 15.3 6.3 0.001 11.2 10.2 0.721 11.2 9.8 0.612
B. tropicalis 27.7 18.7 0.013 22.9 22.9 0.995 27.3 18.0 0.011
Any mite 30.9 21.8 0.017 27.4 25.4 0.628 30.6 21.2 0.014
A. alternata 0.8 0.7 0.895 0.6 0.8 0.715 0.7 0.8 0.931
C. herbarum 0.4 1.4 0.229 1.7 0.6 0.209 1.1 0.8 0.724
Any mould 1.2 1.8 0.599 2.2 1.1 0.322 1.8 1.2 0.555
Grass pollen 2.8 1.4 0.256 1.7 2.3 0.654 2.5 1.6 0.441
Tree pollen 0.4 1.8 0.138 2.2 0.6 0.084 0.7 1.6 0.353
Any pollen 3.2 2.5 0.602 3.4 2.5 0.594 2.9 2.7 0.926
Any allergen 36.9 31.0 0.146 34.1 33.6 0.915 38.1 29.0 0.026