Table 4.

Frequency of cofactors in all patients and subgroup analyses regarding severity of food allergy and age

Cofactors	n (%) All patients (n = 491)	n (%) Mueller 0–2 (n = 236)	n (%) Mueller 3–4 (n = 255)	P‐value Mueller 0–2 vs. Mueller 3–4 (n = 491)	n (%) ≤21 years of age (n = 108)	n (%) >21 years of age (n = 382)	P‐value ≤21 years of age vs. >21 years of age (n = 490)
Physical exercise, alcohol consumption and/or analgesic use	64 (13%)	23 (10%)	41 (16%)	0.037	17 (16%)	47 (12%)	0.349
Physical exercise	47 (10%)	17 (7%)	30 (12%)	0.086	14 (13%)	33 (9%)	0.178
Alcohol consumption	24 (5%)	12 (5%)	12 (5%)	0.846	3 (3%)	21 (5%)	0.248
Analgesic use	3 (0.6%)	0	3 (1%)	0.250	0	3 (1%)	1.000
Unknown to the patient	317 (65%)	156 (66%)	161 (63%)	0.493	62 (57%)	255 (67%)	0.073
No effect	110 (22%)	57 (24%)	53 (21%)	0.371	29 (27%)	80 (21%)	0.192