Association of occasional smoking with total mortality in the population-based Tromsø Study, 2001-2015

Journal article


Loechen, Maja-Lisa, Gram, Inger Torhild, Mannsverk, Jan, Mathiesen, Ellisiv Bøgeberg, Njølstad, Inger, Schirmer, Henrik, Wilsgaard, Tom and Jacobsen, Bjarne K.. (2017). Association of occasional smoking with total mortality in the population-based Tromsø Study, 2001-2015. BMJ Open. 7(12), pp. 1 - 6. https://doi.org/10.1136/bmjopen-2017-019107
AuthorsLoechen, Maja-Lisa, Gram, Inger Torhild, Mannsverk, Jan, Mathiesen, Ellisiv Bøgeberg, Njølstad, Inger, Schirmer, Henrik, Wilsgaard, Tom and Jacobsen, Bjarne K.
Abstract

Objectives
There is a shift in the smoking population from daily smokers to light or occasional smokers. The knowledge about possible adverse health effects of this new smoking pattern is limited. We investigated smoking habits with focus on occasional smoking in relation to total mortality in a follow-up study of a Norwegian general population.
Setting
A population study in Tromsø, Norway.
Methods
We collected smoking habits and relevant risk factors in 4020 women and 3033 men aged 30–89 years in the Tromsø Study in 2001. The subjects were followed up regarding total mortality through June 2015.
Results
Among the participants, there were 7% occasional smokers. Occasional smokers were younger, more educated and used alcohol more frequently than other participants. A total of 766 women and 882 men died during the follow-up. After the adjustment for confounders, we found that occasional smoking significantly increased mortality by 38% (95% CI 8% to 76%) compared with never smokers. We report a dose–response relationship in the hazards of smoking (daily, occasional, former and never smoking).
Conclusions
Occasional smoking is not a safe smoking alternative. There is a need for information to the general public and health workers about the health hazards of occasional smoking. More work should be done to motivate this often well-educated group to quit smoking completely.

Year2017
JournalBMJ Open
Journal citation7 (12), pp. 1 - 6
PublisherBMJ
ISSN2044-6055
Digital Object Identifier (DOI)https://doi.org/10.1136/bmjopen-2017-019107
Scopus EID2-s2.0-85051618396
Open accessOpen access
Page range1 - 6
Research GroupMary MacKillop Institute for Health Research
Publisher's version
License
Place of publicationUnited Kingdom
EditorsT. Groves
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https://acuresearchbank.acu.edu.au/item/8qyx4/association-of-occasional-smoking-with-total-mortality-in-the-population-based-troms-study-2001-2015

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