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Letters
August 18, 1999

Bartenders' Pulmonary Function After Establishment of a Smoke-Free Workplace

Author Affiliations
  • 1University of Toronto and Harvard University
  • 2University of Toronto, Ontario
JAMA. 1999;282(7):629. doi:10.1001/jama.282.7.629

To the Editor: The results of the study by Dr Eisner and colleagues1 addressing the effects of workplace environmental tobacco smoke (ETS) exposure on respiratory symptoms and lung function show a change in both respiratory symptoms and measures of spirometric assessment. Among all study participants, they detected a change in mean forced expiratory volume in 1 second (FEV1) of 0.039 L (95% confidence interval [CI], −0.030 to 0.107 L), which was not statistically significant. When the subgroup with complete cessation of workplace ETS was analyzed, a greater and statistically significant increase in FEV1 of 0.142 L (95% CI, 0.020-0.264 L) was noted.

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