PMID- 22092280
OWN - NLM
STAT- MEDLINE
DCOM- 20120920
LR  - 20220318
IS  - 1365-2133 (Electronic)
IS  - 0007-0963 (Linking)
VI  - 166
IP  - 4
DP  - 2012 Apr
TI  - Prevalence of food avoidance and food allergy in Chinese patients with chronic 
      urticaria.
PG  - 747-52
LID - 10.1111/j.1365-2133.2011.10733.x [doi]
AB  - BACKGROUND: Food avoidance is common among Chinese patients with chronic 
      urticaria because food allergy is considered to be the cause of disease. The 
      benefit of food avoidance and its relationship with food allergy is unknown. 
      OBJECTIVES: The aims of this study were to examine the prevalence and effect of 
      food avoidance and food allergy in patients with chronic urticaria. METHODS: Four 
      hundred and ninety-four patients with chronic urticaria, who attended Peking 
      University Third Hospital from January 2009 to December 2010, were studied. Food 
      avoidance and its effect were investigated with a detailed questionnaire. Food 
      allergy was diagnosed by serum food-specific immunoglobulin E (IgE), elimination 
      diet based on food-specific IgE, and open food challenge. RESULTS: One hundred 
      and fifty-eight patients (32%) avoided fish, shrimp, crab, lamb or beef prior to 
      evaluation and 82.9% of them reported food avoidance ineffective. Out of 341 
      patients tested for serum food-specific IgE, 75 (22%) were positive, with soy, 
      peanut, beef, lamb, chicken, crab and shrimp as the leading allergens. Chronic 
      urticaria induced by food allergy was found in only 2.8% of patients. 
      CONCLUSIONS: The prevalence of food avoidance is high and mostly ineffective in 
      Chinese patients with chronic urticaria. Foods avoided do not correspond to serum 
      food-specific IgE. The incidence of IgE-mediated urticaria, as demonstrated by 
      open food challenge, is low. Physicians and patients should be aware of 
      unnecessary dietary avoidance while seeking treatment of chronic urticaria.
CI  - (c) 2011 The Authors. BJD (c) 2011 British Association of Dermatologists.
FAU - Hsu, M-L
AU  - Hsu ML
AD  - Department of Dermatology, Peking University Third Hospital, Beijing, China.
FAU - Li, L-F
AU  - Li LF
LA  - eng
PT  - Journal Article
DEP - 20120302
PL  - England
TA  - Br J Dermatol
JT  - The British journal of dermatology
JID - 0004041
RN  - 37341-29-0 (Immunoglobulin E)
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Child
MH  - Child, Preschool
MH  - China/ethnology
MH  - Chronic Disease
MH  - Diet
MH  - Female
MH  - Food Hypersensitivity/*diet therapy/ethnology/psychology
MH  - Food Preferences
MH  - Humans
MH  - Immunoglobulin E/blood
MH  - Male
MH  - Middle Aged
MH  - Prevalence
MH  - Urticaria/*diet therapy/ethnology/psychology
MH  - Young Adult
EDAT- 2011/11/19 06:00
MHDA- 2012/09/21 06:00
CRDT- 2011/11/19 06:00
PHST- 2011/11/19 06:00 [entrez]
PHST- 2011/11/19 06:00 [pubmed]
PHST- 2012/09/21 06:00 [medline]
AID - 10.1111/j.1365-2133.2011.10733.x [doi]
PST - ppublish
SO  - Br J Dermatol. 2012 Apr;166(4):747-52. doi: 10.1111/j.1365-2133.2011.10733.x. 
      Epub 2012 Mar 2.