Table 1
Baseline characteristics of patients, onset time and place of anaphylaxis and angioedema

Variable Total (n=297) Anaphylaxis group (n=79) Angioedema group (n=218)
Age (yr), mean±SD 4.8±3.96 6.6±4.9 4.1±3.3*
Gender (boy:girl) 1.26:1 1.39:1 1.2:1
Past allergy history 128 (43.1) 41 (51.9) 87 (39.9)
Allergy family history 25 (8.4) 8 (10.1) 17 (7.8)
Previous anaphylaxis history 12 (4.0) 7 (8.9) 5 (2.3)*
Onset time
Unknown 70 (23.6) 11 (13.9) 59 (27.1)
<30 min from contact 94 (31.6) 40 (50.6) 54 (24.8)*
30 min~2 hr from contact 84 (28.3) 20 (25.3) 64 (29.4)
2~6 hr from contact 36 (12.1) 7 (8.9) 29 (13.3)
Morning 47 (15.8) 8 (10.1) 39 (17.9)
Afternoon 97 (32.7) 31 (39.2) 66 (30.3)
Night 153 (51.5) 40 (50.6) 113 (51.8)
Place
House 275 (92.6) 65 (82.3) 210 (96.3)
Day care center/school 8 (2.7) 6 (7.6) 2 (0.9)*
Restaurant 6 (2) 4 (5.1) 2 (0.9)*
Values are presented as number (%).
*P<0.05.