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Table 1 Correlation between age and IgE. Characteristics of patients and Kendall's tau-b for relationship between IgE and age.

From: Total and specific serum IgE decreases with age in patients with allergic rhinitis, asthma and insect allergy but not in patients with atopic dermatitis

  Mean Age ± SD (range) Age (yr) Number of patients (%) Total IgE [kU/l] vs Age Specific IgE [kU/l] vs Age
   >65 >65 male female τb (n) p τb (n) p
All patients 36.9 ± 22.6 (0.5 – 93) 424 135 229 (40.9) 330 (59.0) -0.262 (553) < 0.0001 -0.176 (485) < 0.0001
Atopic dermatitis 23.6 ± 20.1 (0.5 – 93) 107 6 53 (46.9) 60 (53.1) -0.038 (112) = 0.561 0.034 (68) = 0.696
Allergic Rhinitis/Asthma 36.7 ± 19.6 (3.0 – 79) 108 24 50 (37.9) 82 (62.1) -0.219 (132) < -0.0001 -0.320 (107) < 0.0001
Insect Allergy 44.2 ± 21.7 (2.0 – 82) 209 105 126 (40.1) 188 (59.9) -0.259 (309) < 0.0001 -0.084 (310) = 0.029