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目的了解湖州市急性呼吸道感染(ARI)儿童肺炎支原体(MP)感染情况。方法选取2014—2016年湖州市第一人民医院治疗的ARI患儿,采用间接免疫荧光法(IFA)检测血清MP-Ig M,并分析MP感染的流行病学特征。结果 8 546例患儿,男童4 794例(56.10%),女童3 752例(43.90%);年龄最小31 d,最大14岁。2 333例患儿MP-Ig M检测阳性,阳性率为27.30%;2014—2016年阳性率分别为27.80%、26.71%和27.40%;男童阳性率为23.36%,低于女童的32.33%(P<0.05)。随着年龄增长,MP-Ig M阳性率呈升高趋势(P<0.05)。夏季患儿MP-Ig M阳性率为29.08%,高于冬季的25.36%(P<0.008)。2 333例MP-Ig M阳性患儿中,临床表现以肺炎最多见,占55.51%;其次为急性上呼吸道感染,占29.02%。结论湖州市MP感染在小儿急性呼吸道感染中占较大比例,夏季发病较多,以肺炎患者最多见。
Objective To understand the infection of Mycoplasma pneumoniae (MP) in children with acute respiratory infection (ARI) in Huzhou City. Methods Children with ARI treated in Huzhou First People’s Hospital from 2014 to 2016 were selected for detection of serum MP-Ig M by indirect immunofluorescence (IFA), and the epidemiological characteristics of MP infection were analyzed. Results A total of 8 546 children were enrolled. Among them, 4 794 (56.10%) were boys and 3 752 (43.90%) were girls. The youngest was 31 days and the youngest was 14 years old. The positive rate of MP-Ig M in 2 333 children was 27.3%; the positive rates were 27.80%, 26.71% and 27.40% in 2014-2016 respectively; the positive rate was 23.36% in boys and 32.33% in girls P <0.05). With age, the positive rate of MP-Ig M increased (P <0.05). The positive rate of MP-Ig M in summer children was 29.08%, higher than 25.36% in winter (P <0.008). Of the 2 333 children with MP-Ig M positive, the most common clinical manifestations were pneumonia, accounting for 55.51%; followed by acute upper respiratory tract infection, accounting for 29.02%. Conclusion MP infection in Huzhou City accounted for a large proportion of children with acute respiratory infections, the incidence of more in summer, the most common in patients with pneumonia.