chronic urticaria
Conditions
Interventions
Gold Standard:Urticaria activity evaluation (UAS, Europe 2009 guide)(6 scores):
0 score: none urticaria, none pruritus
1 score: mild urticaria(<20 lesions/24hrs), mild pruritus (exist, but do not cause irritation)
2 score: medium urticaria(20-50 lesions/24hrs), medium pruritus(endurable, but do not have negative affect on lift and sleep)
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Sponsors
Xi’an Jiaotong University
Eligibility
Sex/Gender
All
Age
6 Years to 80 Years
Inclusion criteria
Inclusion criteria: Case group: 1. Age ranges from 6 to 80 years old; 2. Patients have no other disease in the near future; 3. Patients are diagnosed as chronic urticaria (The course of the disease is greater than or equal to 6 weeks); 4. Patients volunteere to participate in this project and be able to practitioners as required; 5. Patients have signed informed consent form, and be able to complete as required. Control group: 1. One case matches one control. Gender and age are the same with the matched case; 2. No history of chronic urticaria; 3. There is no history of the family of chronic urticaria; 4. No disease in the near future.
Exclusion criteria
Exclusion criteria: 1. The patients of chronic urticaria have other disease; 2. Patients have indications of acute infection; 3. Patients have been diagnosed with physical urticaria (including artificial urticaria), cholinergic urticaria or urticaria vasculitis; 4. The patients are unable to cooperation or do not adhere to treatment or are judged poor adherence; 5. Pregnant women and nursing mothers; 6. Patients are joining in other clinical trials.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Sensitivity;specificity;Positive predictive value;Negative predictive value; | — |
Countries
China
Contacts
Public ContactLangchong He
Xi'an Jiaotong University
Outcome results
None listed