Key result
Occupational exposure to environmental tobacco smoke significantly decreased heart rate variability parameters (SDNN and RMSSD) across a work shift (p < 0.05).
Why the study?
Does occupational exposure to environmental tobacco smoke decrease heart rate variability in bar staff?
Observational
Yes
Does occupational exposure to environmental tobacco smoke decrease heart rate variability in bar staff?
p-value: p=<0.05
Occupational exposure to environmental tobacco smoke significantly decreases heart rate variability, a surrogate marker for cardiovascular risk.
Occupational ETS exposure was associated with reduced HRV in bar staff; leaves open causal cardiovascular risk and need for prospective confirmation.
Changes in heart rate variability (HRV) have been linked with cardiac disease and death. Exposure to particulate matter from various sources such as tobacco smoke has been shown to cause alterations in HRV. This study investigated the effects of occupational exposure to environmental tobacco smoke (ETS) on HRV. Air monitoring was conducted in three bars in which smoking was permitted and one bar where smoking was not permitted. Pre- and post-work shift heart rate monitoring was conducted on volunteer staff from the establishments. Heart rate variability parameters, including SDNN and RMSSD, were calculated, and the differences between pre- and post-shift values were plotted and analyzed with respect to ETS exposure. Post-shift minus pre-shift values of SDNN and RMSSD significantly decreased with exposure to ETS (p < 0.05). Occupational exposure to ETS may decrease heart rate variability.
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Wilson et al. (2010) reported an observational. Occupational exposure to environmental tobacco smoke (ETS) vs. No ETS exposure (non-smoking bar) was evaluated on Change in heart rate variability parameters (SDNN and RMSSD) from pre- to post-work shift (p=<0.05). Occupational exposure to environmental tobacco smoke significantly decreased heart rate variability parameters (SDNN and RMSSD) across a work shift (p < 0.05).
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