Day-to-Day Variability in Self-Reported Cigarettes Per Day.
Nicotine Tob Res
; 19(9): 1107-1111, 2017 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-28339973
ABSTRACT
BACKGROUND AND AIMS:
Nicotine addiction theory predicts small day-to-day variability in cigarettes/day (CPD) whereas social learning theory predicts large variability. A description of the variability in CPD over multiple days is not available.METHODS:
We conducted secondary analyses of two natural history studies with daily smokers-one of smokers not intending to quit, and one of smokers intending to quit sometime in the next 3 months. In the former, smokers recorded their smoking during the day by Ecological Momentary Assessment, using a palm-top computer. In the latter, participants reported CPD nightly via a phone Interactive Voice Response system. Analyses were based on smokers who reported averaging ≥10 CPD, and on days in which there was no attempt to stop or reduce smoking.RESULTS:
Across the two studies, on average, smokers had small changes in day-to-day CPD (mean changes were 2.2 and 2.9 CPD). However a minority averaged changing by ≥5 CPD from one day to the next (7% and 11%), and many changed by ≥5 CPD on at least 10 of the 90 days (8% and 31%). Neither smoking restrictions, dependence, stereotypy ratings, nor interest in quitting predicted variability.CONCLUSION:
Although on average, smokers have little change day-to-day CPD, a substantial minority of smokers often change by 5 CPD from day-to-day. We did not find potential causes of this variability. IMPLICATIONS Across day variability in CPD is larger than implied in prior studies. Determining causes of day-to-day variability should increase our understanding of the determinants of smoking.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tabagismo
/
Autorrelato
/
Produtos do Tabaco
/
Fumantes
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article