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目的：为探讨过敏性紫癜患儿病情的影响因素。方法：分析41例过敏性紫癜患儿外周血白细胞计数与其病情程度的关系。结果；多器官损害组白细胞计数明显高于单器官损害组（P＜0．05），平均住院时间长组明显高于平均住院时间短组（P＜0．01），且白细胞计数与平均住院时间呈显著正相关（r=0．86，P＜0．01）。结论：白细胞计数的高低与过敏性紫癜病情程度密切相关，外周血白细胞计数可作为临床上判断其预后的一个指标。
Objective: To investigate the influencing factors of children with Henoch-Schonlein purpura. Methods: The relationship between the peripheral white blood cell count and the severity of 41 children with Henoch-Schonlein purpura was analyzed. Results: The number of white blood cells in multiple organ damage group was significantly higher than that in single organ damage group (P <0.05). The mean length of hospital stay was significantly higher than the average length of hospital stay (P <0.01) Time was significantly positive (r = 0.86, P <0.01). Conclusion: The level of white blood cell count is closely related to the severity of allergic purpura. The peripheral blood leukocyte count can be used as an index to judge the prognosis of the patients.