3、词】慢性特发性荨麻疹;自身免疫性荨麻疹;自体血清皮肤试验;临床分析;调查11 AbstractObjective:To investigate the clinical characteristics of chronic idiopathic urticaria(CIU) in the north of China.Methods:The unified designed questionnaires of CIU were used to collect clinical data of 198 patients,134
4、of them were tested by autologous serum skin test.Results:The incidence of female among the 198 patients with CIU was 1.58 higher than male. 51% of the patients occurred CIU at the age of 35-55years old. The survey showed the prevalence rate of the relative diseases
5、of CIU among the 198 patients were infectious disease 21.2%(42cases),gastric disease 28.8%(57 cases),allergic disease 11.1%(22 cases),thyroid disease 7.07%(14 cases),autoimmune disease 11.6%(23 cases). Family history survey showed 24.2%(48cases)of patients’ relatives
6、 had urticaria. 34.8%(69 cases)of patients’ illness were induced or aggregated on taking some foods. While 55.1% (109 cases)of patients’11 illness were influenced by change of temperature. 10.61%(21 cases)of patients had ever taken some mediations for more than 1 yea
7、r. 78 patients among the 134 ones with CIU had positive ASST (58.2%).Conclusions:The occurring of CIU in the north of china is more common in female. The peak of the incidence is at the age of 35-55 years old. The prevalence rate of infectious disease,gastric disease
8、 is higher,also the patients with family history are more .The relationship between the infectious factors,gastric disease,heredita