A new study has discovered nicotine-filled vapes could help people give up smoking faster.

However, researchers from Lancet Respiratory Medicine say the e-cigarette had to be used in conjunction with other nicotine-based therapy - patches, gum, lozenges - to be most effective.

University of Auckland Associate Professor and lead investigator Dr Natalie Walker says the research is also significant because of the 1124 participants, 40 per cent identified as being Māori.

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