| Daily smoking patterns, their determinants, and implications for quitting. | |
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MedLine Citation:
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PMID: 17295586 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In this article, the authors examine daily temporal patterns of smoking in relation to environmental restrictions on smoking and cessation outcomes. Time-series methods were used for analyzing cycles in 351 smokers who monitored their smoking in real time for 2 weeks. The waking day was divided into 8 "bins" of approximately 2 hr, cigarette counts were tallied for each bin, and temporal patterns of smoking and restriction were analyzed. Cluster analyses of smoking patterns by time of day resulted in 4 clusters: daily decline (n = 30; 9%), morning high (n = 43; 12%), flatline (n = 247; 70%), and daily dip-evening incline (n = 31; 9%). Clusters differed in baseline demographic, smoking, and psychosocial variables. Results suggest that smoking behavior can be characterized by regular patterns of smoking frequency during the waking day: Smoking in the flatline cluster was within +/-0.5 standard deviation at all times. For the other clusters, smoking was high in the morning (daily dip-evening incline: +1.7 standard deviations; morning high: +2.8 standard deviations; daily decline: +1.7 standard deviations); moderate (morning high: -0.8 standard deviations; daily decline: +0.3 standard deviations) or low (daily dip-evening incline: -1.0 standard deviations) midday; and high (daily dip-evening incline: +2.0 standard deviations), moderate (morning high: +0.5 standard deviations), or low (daily decline: -1.5 standard deviations) in the evening. Daily smoking patterns were related to environmental smoking restrictions, but the strength of this relationship differed among clusters and by time of day. Clusters differed in lapse risk. |
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Authors:
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Siddharth Chandra; Saul Shiffman; Deborah M Scharf; Qianyu Dang; William G Shadel |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Experimental and clinical psychopharmacology Volume: 15 ISSN: 1064-1297 ISO Abbreviation: Exp Clin Psychopharmacol Publication Date: 2007 Feb |
Date Detail:
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Created Date: 2007-02-13 Completed Date: 2007-07-05 Revised Date: 2012-12-17 |
Medline Journal Info:
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Nlm Unique ID: 9419066 Medline TA: Exp Clin Psychopharmacol Country: United States |
Other Details:
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Languages: eng Pagination: 67-80 Citation Subset: IM |
Affiliation:
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Graduate School of Public and International Affairs, University of Pittsburgh, Pittsburgh, PA, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Administration, Cutaneous Adolescent Adult Circadian Rhythm* Cluster Analysis Female Humans Male Middle Aged Motivation Nicotine / administration & dosage Patient Dropouts / statistics & numerical data Self Disclosure Self-Assessment Smoking / psychology* Smoking Cessation / methods, psychology* Tobacco Use Disorder / psychology |
| Grant Support | |
ID/Acronym/Agency:
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DA06084/DA/NIDA NIH HHS; R01 DA006084/DA/NIDA NIH HHS; R01 DA006084-09/DA/NIDA NIH HHS; R01 DA006084-09S1/DA/NIDA NIH HHS |
| Chemical | |
Reg. No./Substance:
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54-11-5/Nicotine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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