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E-cigarettes raise teens’ risk of persistent cough and wheeze, study finds

BMJ 2016; 355 doi: https://doi.org/10.1136/bmj.i6203 (Published 21 November 2016) Cite this as: BMJ 2016;355:i6203
  1. Susan Mayor
  1. London

Teenagers who use e-cigarettes have twice the risk of respiratory symptoms such as persistent cough, bronchitis, and wheeze as those who have never used the devices, a large US study has found.1

Use of e-cigarettes among teenagers is increasing dramatically, and public health experts are concerned that these devices may increase cigarette smoking. But there has been limited information on the effect of chronic e-cigarette use on respiratory health.

Researchers analysed responses to a questionnaire from 2086 teenagers aged 16 to 18 years who were taking part in the ongoing Southern California Children’s Health study, to investigate the long term effects …

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