Association of smoking reduction and mortality: protocol for a systematic review and meta-analysis of longitudinal observational studies
Introduction Strong evidence shows that smoking cessation decreases mortality. Much less is known regarding the association between reduction in cigarettes per day (CPD) and mortality. The primary aim of this systematic review is to compare the mortality risk between smokers achieving a sustained re...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMJ Publishing Group
2021-01-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/11/1/e039483.full |