Nicotine-based vapes, or e-cigarettes, are likely to cause cancers of the lung and oral cavity, according to a new study led by UNSW Sydney and published in Carcinogenesis.
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“Considering all the findings – from clinical monitoring, animal studies and mechanistic data – e-cigarettes are likely to cause lung cancer and oral cancer,” [study lead Professor Bernard Stewart] says.
He says though the consistency of findings across those disciplines was striking, the exact number of attributable cancer cases remains unclear.
“Our assessment is qualitative and does not involve a numerical estimate of cancer risk or burden. We’ll only be able to determine the precise risk once longer-term studies are available.”
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While researchers wait for long-term population studies showing whether people who vape are more likely to develop cancer, they must rely on multiple other forms of evidence.
The team identified numerous carcinogenic compounds in e-cigarette aerosols, including volatile organic chemicals and metals released from heating coils.
