白天挤粘法检测在校大学生蠕形螨感染效果分析

目的分析白天挤粘法检出蠕形螨感染的情况。方法采用挤粘法对434名在校大学生进行蠕形螨检查,在显微成像系统下观察并记录拍照,同时调查受检者个人卫生习惯。结果 434名学生中158人感染蠕形螨,感染率为36.41%,男生感染率为26.79%,女生感染率为42.48%,女生显著高于男生(χ2=9.64,P<0.01);毛囊蠕形螨面部感染率(69.62%)高于皮脂蠕形螨(17.09%)(χ2=44.38,P<0.01);卵检出率19.60%,高于常规检查方法的卵检出率。检出的螨虫在透明胶纸上保存时间较长,20d左右蠕形螨的形态依然清晰可辨。结论白天挤粘法取材方便快速,操作简单,观察标本时间足够,适合临床检验和大样本人群普查。

Analysis of Demodex infection among college students using skin scrapings collected with cellophane tape during the daytime

Objective To analyze the incidence of Demodex infection using skin scrapings collected with cellophane tape during the daytime.Methods Four hundred and thirty-four medical students were tested for Demodex mite infection using skin scraping and the cellophane tape method.Samples were observed and photographed with a microscopic imaging system.Health habits of the students were investigated via a questionnaire.Results The total rate of infection was 36.4 %.The infection rate for boys was 26.79% and that for girls was 42.48%.Boys had a higher infection rate than girls(χ2=9.64,P<0.01).The rate of infection with D.folliculorum(69.62%)was higher than that with D.brevis(17.09%)(χ2=44.38,P<0.01).The rate of ova detection was 19.6%.This is higher than the rate of ova detection by a routine examination.Mites on transparent adhesive tape can be preserved for a relatively long period of time,and Demodex mites are still evident after about 20 days.Conclusion Skin scrapings collected with cellophane tape during the daytime are a convenient and fast method of detecting Demodex.This method is easy to perform and specimens can be viewed for a sufficient amount of time.This method is suitable for clinical testing and surveys of large populations.