title: [Mites in mattress dust and relevant environmental factors in student dormitories in Shenzhen].
abstract: Three hundred and eight mattress dust samples were collected from college dormitories in Shenzhen with a mite prevalence of 88% (271/308). From the samples, 6163 mites were isolated and identified. Dermatophagoides farinae, D. pteronyssinus and Blomia tropicalis were three most abundant species, occupying 29.7%, 21.7% and 17.9%, respectively. It was found that sex of the students, mattress cover (bamboo mat or bed sheet), with or without air conditioner installation, and daily using of air conditioner (<2 h, 2-8 h and >8 h) had no significant influence on the mite prevalence (P>0.05). However, logistic regression analysis revealed that the risk of mite sensitization in male student dormitory was significantly lower than that in female dormitory (OR=0.55, P=0.038), and the risk of using bed sheets was significantly higher than using bamboo mats (OR=2.13, P=0.040). Both mite prevalence and the risk of mite sensitization significantly decreased with higher floor of the dormitory building.
authors.affiliation: Allergy and Immunology Institute, School of Medicine, Shenzhen University, Shenzhen 518060, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.forename: Zhi-gang
authors.initials: ZG
authors.lastname: Liu
authors.forename: Pi-xin
authors.initials: PX
authors.lastname: Ran
authors.forename: Qiao
authors.initials: Q
authors.lastname: Gao
authors.forename: Chun-hui
authors.initials: CH
authors.lastname: Luo
authors.forename: Mei
authors.initials: M
authors.lastname: Ai
mesh_terms: D000818:Animals; D001513:Beds / Q000469:parasitology*; D002681:China; D004391:Dust; D005260:Female; D006798:Housing; D008297:Male; D039981:Pyroglyphidae; D014495:Universities
chemical_list: D004391:Dust