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目的为了解某医科大学生面部蠕形螨的感染状况,探讨蠕形螨感染的危险因素。方法以某医科大学的641名在校大学生为调查对象,采用透明胶带法收集样本,并进行镜检。同时,采用自行设计的问卷调查,2检验等方法分析蠕形螨感染的相关因素。结果受检学生641人,检出感染人体蠕形螨74人,感染率11.5%,其中男生感染率为9.7%(26/269),女生感染率为12.9%(48/372),差异无统计学意义(P=0.206);2011级学生的检出率为14.8%(37/250),2012级学生的检出率为9.5%(37/391),差异有统计学意义(P=0.039);油性或混合性肤质者感染率为13.1%比干性或中性皮肤者感染率(6.1%)高(P=0.026);感染者的感染度以轻度(1~5条)为主,占95.9%(71/74),1人最多检出14条蠕形螨。结论该校的蠕形螨感染率偏低。随集体宿舍生活时间的增加,感染率上升;偏油性肤质者比偏干性肤质者更容易发生感染。
Objective To understand the infection status of Demodex mites on a medical college student and to explore the risk factors of Demodex infection. Methods A total of 641 undergraduates in a medical university were enrolled in the study. Samples were collected by scotch tape and examined microscopically. At the same time, using the self-designed questionnaire, 2 test and other methods to analyze the related factors of Demodex infection. Results Among the 641 students tested, 74 were infected with Demodex, the infection rate was 11.5%. Among them, the male infection rate was 9.7% (26/269) and the female infection rate was 12.9% (48/372), with no statistical difference (P = 0.206). The detection rate of 2011 grade students was 14.8% (37/250) and that of 2012 grade students was 9.5% (37/391), with significant difference (P = 0.039) ; The infection rate of oily or mixed skin was 13.1% higher than that of dry or neutral skin (6.1%) (P = 0.026). The infection rate of infected persons was mild (1-5) , Accounting for 95.9% (71/74), up to 14 vermiform mites were detected in one person. Conclusion The school’s demodex mite infection rate is low. With the increase of dormitory living time, the infection rate increased; oily skin were more prone to infection than dry skin.