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Table 1 Characteristics of the study population

From: Anaphylaxis triggers in a large tertiary care hospital in Qatar: a retrospective study

Characteristic Total N = 1068 n (%) Anaphylaxis N = 574 n (%) GAR N = 132 n (%) P-value
Age (Years)
  < 10 603 (56.3) 300 (52.2) 85 (64.3) 0.009a
 10–19 210 (19.7) 109 (18.9) 22 (16.6)
 20–55 209 (19.6) 137 (23.8) 21 (15.9)
 >. 55 46 (4.3) 28 (4.8) 4 (3.0)
Gender  
 Male 612 (57.3) 315 (54.8) 83 (62.8) 0.095
 Female 456 (42.7) 259 (45.2) 49 (37.1)
Nationality, N = 1067b
 Qatari 438 (41.0) 251 (43.7) 63 (47.7) 0.009
 Non-Qatari, Arab 303 (28.4) 162 (28.2) 25 (18.9)
 Asian 228 (21.4) 118 (20.5) 24 (18.1)
 Others 98 (9.2) 42 (7.3) 20 (15.1)
Personal History
 Asthma 357 (36.4) 208 (36.2) 68 (51.5) <  0.001
 Atopic dermatitis 326 (33.2) 195 (33.9) 66 (50) <  0.001
 Urticaria/ angioedema 254 (25.9) 179 (31.1) 36 (27.2) 0.485
 Allergic rhinitis 142 (14.5) 81 (14.1) 30 (22.7) 0.009
Family History, N = 123
 Atopy c 70 (56.9) 58 (10.1) 8 (6.1) 0.989
 Anaphylaxis 6 (4.9) 5 (0.8) 1 (0.7)
Consanguinity, N = 33 30 (90.9) 25 (4.3) 2 (1.5) 1.000*
  1. GAR generalized allergic reactions
  2. a Chi-square for trend (linear by linear association)
  3. b One patient had no listed nationality in the system
  4. c Atopy includes asthma, atopic dermatitis, urticaria and allergic rhinitis
  5. *P-value is for Fischer test (exact significant 2-sided)