甘肃省食用添加三聚氰胺奶粉的婴幼儿结石发病情况调查

Investigation on the Incidence of Urolithiasis in Infants Fed by Melamine-tainted Milk Powder in Gansu Province

目的调查甘肃地区0～3岁7856例食用添加三聚氰胺奶粉婴幼儿泌尿系统结石的发病情况及特点。方法对2008年9月14日至2008年11月15日甘肃省兰州大学第二医院门诊部进行筛查的0～3岁的7856例婴幼儿进行问卷调查和泌尿系统B超检查,采用Excel录入资料,用SPSS13.0软件对数据进行卡方检验及描述性分析。结果接受调查的7856例婴幼儿中男性4090例(52.06%)、女性3766例(47.94%),平均年龄18.30±9.68月,其中704例患有泌尿系统结石,患病率为8.96%,99.14%的结石部位在肾脏。704例结石患儿中男性434例(61.65%)、女性270例(38.35%)。0～6月的婴幼儿58例,患病率为3.16%;6～12月的婴幼儿218例,患病率为11.01%;12～24月的婴幼儿275例,患病率为12.55%;24～36月的婴幼儿153例,患病率为8.27%。结果显示,不同性别和不同年龄段的婴幼儿其泌尿系统结石患病率的差异有统计学意义(P<0.05)。结论甘肃省筛查的0～3岁食用添加三聚氰胺奶粉婴幼儿泌尿系统结石患病率较高,发病年龄主要在6～24月之间,结石好发部位为肾脏,具有解剖结构特异性。

Objective To investigate the incidence of urolithiasis in infants aged 0-3 years old fed by melaminetainted milk powder in Gansu province. Methods Questionnaires were distributed to 7 856 infants who were screened for urolithiasis in the Second Hospital of Lanzhou University by ultrasound examination from September 25, 2008 to November 15, 2008. Data were collected by Excel and analyzed by SPSS 13.0 software. Results A total of 4 090 （52.06%） male infants and 3 766 （47.94%） female infants underwent ultrasound examination in the Second Hospital of Lanzhou University. The mean age of the infants with urolithias was 18.30±9.68 months. Of those, 704, including 434 males （61.65%） and 270 females （38.35%）, were diagnosed with urolithiasis, with an incidence of 8.96%, and 99.14% of calculus was located in kidney. And, 58 aged 0-6 months with an incidence of 3.16%, 218 aged 6-12 months with an incidence of 11.01%, 275 aged 12-24 months with an incidence of 12.55%, and 153 aged 24-36 months with an incidence of 8.27%. The relationship between the incidence of urolithiasis and gender as well as age was assessed by using the Pearson Chi-square test. The results showed significant differences in the incidence of urolithiasis among infants of different genders and different ages （P〈0.05）. The result of multiplelogistic regression analysis indicated that gender was related to the incidence of urolithiasis （P〈0.05）. Conclusion The incidence of urolithiasis in the infants aged 0-3 years old in Gansu province is relatively high. The incidence of urolithiasis focuses on the infants aged 6-24 months and has anatomical specificity.