Objective To determine the reference range and to analyze the results of urine bacterial counts by UF‐500i fully automated urine sediment analyzer .Methods Non‐centrifuged urine specimens collected from 300 ca‐ses of healthy adults (150 males and 150 females) were detected by UF‐500i fully automated urine sediment analyzer . Results were analyzed by analysis of variance according to different genders and ages ,what is more ,reference range of bacteria count in urine for healthy population was determined .Results The count of bacteria in the urine of females were higher than that of males ,and the difference was significant (P< 0 .05) .The counts of bacteria in urine for peo‐ple who were > 60 years old were significantly higher than those of other age groups (P< 0 .05) .The reference ran‐ges of bacteria counts in urine for females with the age of 18 - 60 and > 60 years old were 190 .91 - 334 .96 and 0 .00 - 2 476 .12/μL respectively ,for the man ,they were 51 .49 - 83 .68 and 0 .00 - 1 759 .76/μL respectively .Conclu‐sion Laboratory are necessary to establish their own urine bacterial count reference ranges for healthy people ,ac‐cording to their situations .%目的：建立 UF‐500i 型全自动尿沉渣分析仪检测健康成人尿液中细菌计数的参考范围。方法用UF‐500i 型全自动尿沉渣分析仪检测健康成年人（男、女各150例）新鲜非离心尿液标本，对不同性别和年龄组研究对象的检测结果进行分析，建立健康成人尿液中细菌计数的参考范围。结果女性尿液中细菌计数明显高于男性，差异有统计学意义（P＜0．05）。＞60岁组的尿液中细菌计数明显高于其他年龄组（P ＜0．05）。＞60岁和18～60岁的女性尿液中细菌计数参考范围分别是190．91～334．96、0．00～2476．12／μL 。＞60岁和18～60岁的男性尿液中细菌计数参考范围分别是51．49～83．68、0．00～1759．76／μL 。结论各实验室有必要根据自身情况建立自己的健康人群尿液细菌计数参考范围。
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