中学生面部蠕形螨感染调查分析

Investigation on the Infection of Demodex in Middle School Students

目的:调查大理州永平县龙门乡中学生面部蠕形螨的感染情况,并分析感染的原因。方法:采用透明胶带粘贴法对211名中学生面部蠕形螨的感染情况进行调查,并观察其面部皮肤状况。结果:蠕形螨总感染率为6.16%;男生感染率(7.34%)高于女生(4.9%);感染虫种多为毛囊蠕形螨,少数为皮脂蠕形螨,差异有统计学意义(χ2=7.538,P<0.05);采用清水、香皂、洗面奶、药皂四种洗脸方式间差异有统计学意义(χ2=1.526,P<0.05);学生住校与住家的感染率差异有统计学意义(χ2=10.972,P<0.05);面额部的检出率高于其他部位,且油性与中性皮肤较干性皮肤检出率高,差异有统计学意义(χ2=1.314,P<0.05)。结论:永平县龙门乡中学生面部存在蠕形螨感染的情况,应加强对学生面部蠕形螨的防治。

Objective： To investigate the infective status and reasons of Demodex in middle school students at Longmen Township of Yongping County in Dali Prefecture. Methods： Facial infection of Demodex of 211 middle school students were examined by cellophane tape method and the facial skin condition were also recorded. Results： The infection rate of Demodex was 6.16% in middle school student. The infection rate of male （7.34%） was higher than that of female （4.9%）. The infection rate of Demodex folliculorum was higher than that of Demodex brevis （~2=7.538, P〈O.05）. There were significant differences on the infection rates of the students washing with water, soap, cleanser and medicated soap. （X2=1.526, P〈0.05）. and there was significant difference on infective rate of students living in school or at home （X2=10.972,/）〈0.05）. The infection rate of Demodex at frontal was higher than the rates of other parts and the infection rate of students who were oily skin was higher than that of students who were normal skin or dry skin （X2=1.314, P〈0.05）. Conclusion： The infection of Demodex could be found on the middle school students at Longmen Town, which raised that strategy should be conducted to strengthen students facial Demodex prevention.