Objective To explore clinical characteristics and risk factors by analyzing the data of diagnosed H1N1 influenza cases in Chongqing. Methods Clinical characteristics of confirmed H1N1 influenza cases in Chongqing were analyzed. Logistic-regression and multivariate linear regression were used to evaluate related factors of complications and period of fever. Results The average age of 2 077 cases of H1N1 influenza in Chongqing was 15. 41 years old. Male : Female= 1. 37 : 1. 00. Vocation gave priority to students(primary and secondary school). 95. 43% cases presented with fever, while the average temperature was(38. 68±0. 62) ℃. The period with fever was between 0 - 19 days, with median of 2 days. In other 18 clinical symptoms,cases with cough,sore throat, headache,fatigue and runny symptoms accounted relatively higher percentage. 15. 60% cases were hospital admissions, 1. 44% of which had complications. Conclusion Different type of treatment process was the risk factor of fever period,but the emergence of complications was protective. Fever period,cough duration and enlargement levels of amygdale were risk factors of complications. Sore throat had influenced the appearance of complications.%目的 分析重庆市甲型H1N1流感确诊病例的临床资料,探讨病例的临床特征及影响因素.方法 对确诊病例进行临床特点分析,用Logistic回归和多元线性回归分析并发症和热程的相关影响因素.结果 2 077例甲型H1N1流感病例平均年龄是15.41岁,男∶女为1.37∶1.00.职业以学生(中小学)为主.95.43%病例出现发热症状,体温平均为(38.68±0.62)℃,热程为0～19 d,中位数为2 d;18个其他临床症状中出现咳嗽、咽痛、头痛、乏力和流涕症状病例的比例相对较高.住院病例占所有确诊病例15.60%,1.44%住院病例出现并发症.结论 不同的治疗类型是热程的危险因素,但出现并发症对热程有一定的保护作用.热程、咳嗽时长和扁桃体肿大程度是出现并发症的危险因素,但咽痛对控制并发症有保护作用.
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