The Prevalence of Demodex folliculorum and Demodex brevis in Cylindrical Dandruff Patients

Autor: Jing Zhong, Yiwei Tan, Saiqun Li, Lulu Peng, Bowen Wang, Yuqing Deng, Jin Yuan
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Ophthalmology, Vol 2019 (2019)
Druh dokumentu: article
ISSN: 2090-004X
2090-0058
DOI: 10.1155/2019/8949683
Popis: Purpose. To compare the prevalence of and factors associated with Demodex brevis and Demodex folliculorum in patients with cylindrical dandruff (CD group) and healthy controls. Methods. Eyelashes were taken from 1680 patients with CD and 1700 healthy controls in China from March 2015 to May 2017. All patients underwent a complete eye examination, and Demodex spp. were counted. The prevalence was analyzed according to age, gender, and clinical features. Results. Mean patient age was 42.93 ± 16.52 (3–88) and 39.4 ± 13.6 (7–81) years old in the CD and healthy control groups, respectively. In the CD and healthy groups, the positive rate for Demodex folliculorum was 27.92% and 8.47%, respectively, while that for Demodex brevis was 31.67% and 6.65%, respectively. In the CD group, the prevalence of Demodex brevis was higher than that of Demodex folliculorum, no matter in the females (33.65% versus 29.01%) or the males (28.54% versus 23.88%) in the CD group. Moreover, the numbers of Demodex folliculorum and Demodex brevis were significantly and positively correlated with age, in both children and old patients (both P
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