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Table 3 Number (%) of patients classified by the cause of urticaria in four different age-groups

From: Etiological and predictive factors of pediatric urticaria in an emergency context

Age

Total

(n = 515)

Cause of urticaria

Idiopathic

(n = 177)

Drugs

(n = 21)

Foods

(n = 13)

Insect stings

(n = 4)

Infection

(n = 264)

Inhalation

(n = 36)

Median age (IQR), years

7.08 (3.17–12.08)

7.08 (3.17–12.08)

12.58 (9.42–15.83)

7 (4.58–15.83)

1.25 (0.83–1.92)

16.83 (9.125–17.455)

3.96 (1.58–6.75)

<=1 yr

45 (8.74)

1 (0.56)

0 (0)

6 (46.15)

0 (0)

37 (14.02)

1 (2.78)

1-6 yr

211 (40.97)

15 (8.47)

10 (47.62)

5 (38.46)

1 (25)

165 (62.5)

15 (41.67)

7-12 yr

145 (28.16)

78 (44.07)

3 (14.29)

2 (15.38)

0 (0)

51 (19.32)

11 (30.56)

13-18 yr

114 (22.14)

83 (46.89)

8 (38.1)

0 (0)

3 (75)

11 (4.17)

9 (25)

  1. Chi square test (15) = 247.0309, p-value < 0.001