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首页> 外文期刊>Sao Paulo Medical Journal >Environmental tobacco smoke exposure among non-smoking waiters: measurement of expired carbon monoxide levels
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Environmental tobacco smoke exposure among non-smoking waiters: measurement of expired carbon monoxide levels

机译：非吸烟服务员中的环境烟草烟雾暴露：测量过期的一氧化碳水平

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CONTEXT: Exposure to environmental tobacco smoke is a health risk that is of concern to patrons and of particular concern to employees of restaurants and bars. OBJECTIVE: To assess environmental tobacco smoke exposure (using expired carbon monoxide levels) in non-smoking waiters before and after a normal day's shift and to compare pre-exposure levels with non-smoking medical students. DESIGN: An observational study. SETTING: Restaurants with more than 50 tables or 100 places in S?o Paulo. SUBJECTS: 100 non-smoking restaurant waiters and 100 non-smoking medical students in S?o Paulo, Brazil. MAIN MEASUREMENTS: Levels of expired carbon monoxide, measured with a Smokerlyser (Bedfont EC 50 Scientific), before and after a normal day's work. RESULTS: Waiters' pre-exposure expired carbon monoxide levels were similar to those of medical students, but after a mean of 9 hours exposure in the workplace, median levels more than doubled (2.0 ppm vs. 5.0 ppm, P
机译：背景：暴露于环境烟草烟雾中是一种健康风险，这是顾客所关注的，尤其是饭店和酒吧员工的关注。目的：评估正常一天轮班前后非吸烟服务员的环境烟草烟雾暴露（使用过期的一氧化碳水平），并将其与非吸烟医学生的暴露前水平进行比较。设计：一项观察性研究。地点：在圣保罗，拥有超过50张桌子或100个地方的餐厅。主题：巴西圣保罗的100名无烟餐厅服务生和100名无烟医科学生。主要测量指标：在正常工作之前和之后，使用Smokerlyser（Bedfont EC 50 Scientific）测量的一氧化碳已过期水平。结果：服务员的暴露前一氧化碳过期水平与医学生相似，但在工作场所平均暴露9小时后，中位水平增加了一倍以上（2.0 ppm与5.0 ppm，P

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