title: Lyme Borreliosis-associated Risk Factors in Residents of Beijing Suburbs: a Preliminary Case-control Study.
abstract: A population-based case-control study was conducted to evaluate the relative factors in the environments, agricultural works, outdoor activities, and the effectiveness of Lyme borreliosis (LB)- associated personal protective measures in Beijing. Thirty-four cases and 272 controls were personally interviewed by well-trained interviewers. Venous blood samples were taken from each subject. Sowing or harvesting in summer (OR=2.571, 95% CI: 1.109-5.962), living in house with weeding in the yard (OR=2.247, 95% CI: 1.062-4.755), and residence at the plain area (OR=2.630, 95% CI: 1.050-6.588) were the independent relative factors for seropositive LB. Wearing long pants and clothes with cuffs was the only protective behavior against tick bite (OR=0.186, 95% CI: 0.041-0.846). The findings showed that local farmers were easily infected with LB and almost no protective measure was taken against LB infection. Infection with LB was easier in residents of plain regions. Pets raising and outdoor activities were not the risk factors for infection with LB. Further studies are needed to fully understand the risk of infection with LB in China.
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Xiang Feng
authors.initials: XF
authors.lastname: Dou
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Yan Ning
authors.initials: YN
authors.lastname: Lyu
authors.affiliation: State Key Laboratory for Infectious Diseases Prevention and Control, National Institute of Communicable Disease Control & Prevention, Chinese Center of Disease Control & Prevention, Beijing 102206, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Chang Ying
authors.initials: CY
authors.lastname: Lin
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Li Li
authors.initials: LL
authors.lastname: Tian
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Quan Yi
authors.initials: QY
authors.lastname: Wang
authors.affiliation: Miyun Country Center for Disease Prevention and Control, Beijing 101500, China.
authors.forename: Yu Song
authors.initials: YS
authors.lastname: Yang
authors.affiliation: Huairou District Center for Disease Prevention and Control, Beijing 101400, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Li
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Yu Lan
authors.initials: YL
authors.lastname: Sun
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Zeng Zhi
authors.initials: ZZ
authors.lastname: Guan
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Xiu Chun
authors.initials: XC
authors.lastname: Zhang
authors.affiliation: Institute for Infectious and Endemic Diseases Control, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
authors.forename: Xin Yu
authors.initials: XY
authors.lastname: Li
mesh_terms: D000328:Adult; D000368:Aged; D000383:Agriculture; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D002947:Cities; D004777:Environment; D005260:Female; D006802:Human Activities; D006801:Humans; D008193:Lyme Disease / Q000453:epidemiology* / Q000382:microbiology / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D055815:Young Adult