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*"More important, to me as a statistician at least, is that this research can’t establish that the higher levels of lead and uranium in the urine of participants who said they vaped more often were actually caused by their vaping." (McConway) | *"More important, to me as a statistician at least, is that this research can’t establish that the higher levels of lead and uranium in the urine of participants who said they vaped more often were actually caused by their vaping." (McConway) | ||
*"No control group (i.e., adolescents without any e-cigarette use) was included in the analysis...This study therefore cannot tell us anything about absolute increase in exposure to heavy metals from e-cigarette use in this population, only about relative exposure among less and more frequent e-cigarette users." (Shahab) | *"No control group (i.e., adolescents without any e-cigarette use) was included in the analysis...This study therefore cannot tell us anything about absolute increase in exposure to heavy metals from e-cigarette use in this population, only about relative exposure among less and more frequent e-cigarette users." (Shahab) | ||
*See Also: [https://pubpeer.com/publications/E1834A07BDF105C94CC44DD0815856 PubPeer] "The reported mean values are then consistently far below the limit of detection. To draw any conclusions from values below LOD, is bad practice at best." | |||
*Referring to: Kochvar A, Hao G, Dai HD Biomarkers of metal exposure in adolescent e-cigarette users: correlations with vaping frequency and flavouring Tobacco Control Published Online First: 29 April 2024. doi: 10.1136/tc-2023-058554 | *Referring to: Kochvar A, Hao G, Dai HD Biomarkers of metal exposure in adolescent e-cigarette users: correlations with vaping frequency and flavouring Tobacco Control Published Online First: 29 April 2024. doi: 10.1136/tc-2023-058554 | ||
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