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Table 2 shows the baseline characteristics of participants stratified by their smoking trajectory

The concern over "side stream" or "second hand" smoke suggests that you should enjoy your pipe only in a well-ventilated area and/or use an air purifier

The weighted mean (SD) for pack-years of smoking among adults who ever smoked was 32.9 (48.0), and hours of exposure to secondhand smoke per week was 3.6 (13.4)

Low levels reduce the uptake of oxygen at the alveolar-capillary membrane and oxygen delivery to the tissues

Market data on the site indicate that approximately one out of every two moist smokeless tobacco consumers purchases a USSTC brand and that its Oral Tobacco Products segment held a 37.5 percent retail share in 2024, underscoring its strong market position