Results There were no significant difference of age distribution and course of the disease between the ASST+ and ASST-urticaria pa tients(both P > 0.05).

• 结果自体血清皮肤试验阳性与阴性的慢性荨麻疹患者在年龄分布、病程上差异无统计学意义(P>0.；05)。