Geometric mean iAs levels in MOD devices was 4.9 times higher than in POD devices and 7.4 times higher than in d-PODs, although with considerable intra-type variation for each e-cig type [Figure 1]
No information exists for long-term low-level inhalation exposures to these compounds, said study team member Kent Voorhees of the Colorado School of Mines, and no data exists to establish the possible synergistic effect of these pesticides with each other, or with the other 4,700-plus compounds that have been identified in tobacco smoke. The researchers studied a range of experimental and commercial cigarette smoke samples
Table 5 Longitudinal association between tobacco use and incident breathing stops, Agincourt, South Africa, 20142019 (N=3620) DISCUSSION In this novel longitudinal investigation in South Africa, we found that higher tobacco use was independently associated with incident sleep disturbance, incident restless sleep, and incident breathing stops, but not incident poor sleep quality
Sensitivity parameters estimates were used to quantify the influence of potential unobserved confounders
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