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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

Ï„b

(n)

p

Ï„b

(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