Format

Send to

Choose Destination
Regul Toxicol Pharmacol. 2014 Dec;70(3):615-28. doi: 10.1016/j.yrtph.2014.09.008. Epub 2014 Sep 30.

Smoking behaviour and compensation: a review of the literature with meta-analysis.

Author information

1
ABF Analytisch-Biologisches Forschungslabor GmbH, Goethestraße 20, 80336 Munich, Germany. Electronic address: gerhard.scherer@abf-lab.com.
2
P.N. Lee Statistics and Computing Ltd, 17 Cedar Road, Sutton, Surrey SM2 5DA, UK. Electronic address: PeterLee@pnlee.co.uk.

Abstract

The extent of compensation when switching to lower yield cigarettes is important for assessing risk of reduced yield products. Both completeness of and reasons for compensation are judged differently in the scientific and health community. We quantified compensation in a meta-analysis of suitable cross-sectional and brand-switching studies. For each dataset, we derived a compensation index (CI), 1 indicating complete and 0 no compensation. Meta-analyses provided overall estimates. We also reviewed evidence on compensation for nicotine and other factors. The unweighted mean CI (95% confidence interval) was 0.628 (0.513 to 0.742) from 38 estimates from 26 cross-sectional studies, and 0.723 (0.651 to 0.796) from 23 estimates from 19 brand-switching studies. Inverse-variance weighted estimates were 0.781 (0.720 to 0.842) and 0.744 (0.682 to 0.806). Brand-switching data indicate smokers compensate more completely over a narrower yield range. Smokers predominantly compensate by changing puffing volume, and little by changing cigarette consumption. The findings support compensation for nicotine, but other factors may also be relevant. Further investigation is needed using larger studies and different approaches to elucidate their role. We conclude that smokers switching to lower-yield cigarettes only partially compensate. Pharmacological nicotine effects are important, but other factors, including cigarette draw resistance, sensory effects of nicotine and conditioned stimuli may also contribute.

KEYWORDS:

Cigarette smoking; Compensation; Meta-analysis; Nicotine; Puffing behaviour; Standard smoking regimes

PMID:
25277253
DOI:
10.1016/j.yrtph.2014.09.008
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center