儿童哮喘严重性与接触室内常见的灰尘过敏原之间的关系
2009/09/16
背景:减少室内灰尘中吸入性过敏原暴露被推荐位减少哮喘发生的一项措施。
目的:在特应性和非特应性哮喘患儿中研究5种常见室内过敏原对哮喘严重程度的影响及剂量-效应关系,并对症状发生频率和用药情况进行量化。
方法:对300名年龄在4~12岁之间的哮喘患儿进行为期1年的随访调查。收集室内两处灰尘样本进行过敏原分析,其中包括尘螨(Der p 1, Der f 1)、猫(Fel d 1)、狗(Can f 1)和蟑螂(Bla g 1)的相关过敏原。每月通过电话随访,收集每日症状及药物使用情况。随访结束后通过模型(其中包括过敏原、特异性IgE敏感性)对患者疾病严重程度进行评价,并对年龄、性别、特应性、种族及母亲受教育程度进行校正。
结果:室内主厅和儿童床铺的尘螨过敏原Der p 1浓度≥2.0 μg/g时与哮喘的严重程度增加相关,且独立于患者的过敏状态(2.0-10.0 μg/g时:OR 2.93, 95% CI 1.37, 6.30;10.0 μg/g时:OR 2.55 95% CI 1.13, 5.73)。较高的宠物过敏原水平与疾病严重程度相关,但仅限于特应性哮喘患者(猫源性过敏原:OR 2.41 95% CI 1.19, 4.89;狗源性过敏原:OR 2.06 95% CI 1.01, 4.22)。
结论:较高水平的Der p 1和宠物过敏原与哮喘严重程度相关,但Der p 1为一个独立于宠物过敏原之外的危险因素,且与Der p 1特异性IgE状态无关。
(林江涛 审校)
Gent JF, Belanger K, Triche EW, et al. Environ Res. 2009 Aug;109(6):768-74. Epub 2009 May 26.
Association of pediatric asthma severity with exposure to common household dust allergens.
Gent JF, Belanger K, Triche EW, Bracken MB, Beckett WS, Leaderer BP.
Yale Center for Perinatal, Pediatric and Environmental Epidemiology, Department of Epidemiology and Public Health, Yale University School of Medicine, One Church Street, 6th Floor, New Haven, CT 06510, USA. janneane.gent@yale.edu
BACKGROUND: Reducing exposure to household dust inhalant allergens has been proposed as one strategy to reduce asthma.
OBJECTIVE: To examine the dose-response relationships and health impact of five common household dust allergens on disease severity, quantified using both symptom frequency and medication use, in atopic and non-atopic asthmatic children.
METHODS: Asthmatic children (N=300) aged 4-12 years were followed for 1 year. Household dust samples from two indoor locations were analyzed for allergens including dust mite (Der p 1, Der f 1), cat (Fel d 1), dog (Can f 1), cockroach (Bla g 1). Daily symptoms and medication use were collected in monthly telephone interviews. Annual disease severity was examined in models including allergens, specific IgE sensitivity and adjusted for age, gender, atopy, ethnicity, and mother’s education.
RESULTS: Der p 1 house dust mite allergen concentration of 2.0 microg/g or more from the main room and the child’s bed was related to increased asthma severity independent of allergic status (respectively, OR 2.93, 95% CI 1.37, 6.30 for 2.0-10.0 microg/g and OR 2.55 95% CI 1.13, 5.73 for 10.0 microg/g). Higher pet allergen levels were associated with greater asthma severity, but only for those sensitized (cat OR 2.41 95% CI 1.19, 4.89; dog OR 2.06 95% CI 1.01, 4.22).
CONCLUSION: Higher levels of Der p 1 and pet allergens were associated with asthma severity, but Der p 1 remained an independent risk factor after accounting for pet allergens and regardless of Der p 1 specific IgE status.
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母亲孕期哮喘的控制和严重程度与其后代过敏性皮炎和过敏性鼻炎发生率的关系
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哮喘控制与卫生资源利用、工作能力丧失及健康相关生命质量的关系