Hyoshin Kim1, Marielle C Brinkman2, Eva Sharma3, Sydney M Gordon4, Pamela I Clark5. 1. Senior Research Scientist, Battelle Public Health Center for Tobacco Research, Battelle Memorial Institute, Seattle, WA. 2. Senior Research Scientist, Battele Public Health Center for Tobacco Research, Battelle Memorial Institute, Columbus, OH. 3. Senior Study Director, Westat, Rockville, MD. 4. Research Leader, Battelle Public Health Center for Tobacco Research, Battelle Memorial Institute, Columbus. OH. 5. Research Professor, School of Public Health, University of Maryland, College Park, MD.
Abstract
OBJECTIVES: We examined intra-individual variability in puff topography and CO measures collected during laboratory waterpipe (WP) tobacco smoking using a research-grade waterpipe (RWP). METHODS: WP smoking topography and exhaled CO measures were obtained from 10 established WP smokers in a single-blind, crossover design. Using a previously validated RWP, each participant smoked "Two Apples" WP tobacco ad libitum with a single quick-light charcoal to satiation in 3 laboratory sessions spaced at least one week apart. To examine the intra-individual variability, the intraclass correlation coefficient (ρ) for topography and CO measures were estimated. Results: The majority of the topography and CO measures were stable. Most stable were puff frequency (ρ = 0.88), number of puffs (ρ = 0.86), and puff duration (ρ = 0.80). Less stable were peak flow (ρ = 0.57) and total puff volume (ρ = 0.52). CONCLUSIONS: The results provide the first set of empirical evidence that most topography and CO measurements collected using the RWP from a single laboratory smoking session are stable such that they can be representative of a smoker's puffing behaviors and reproducible among 3 sessions spread equally across 3 weeks.
RCT Entities:
OBJECTIVES: We examined intra-individual variability in puff topography and CO measures collected during laboratory waterpipe (WP) tobacco smoking using a research-grade waterpipe (RWP). METHODS: WP smoking topography and exhaled CO measures were obtained from 10 established WP smokers in a single-blind, crossover design. Using a previously validated RWP, each participant smoked "Two Apples" WP tobacco ad libitum with a single quick-light charcoal to satiation in 3 laboratory sessions spaced at least one week apart. To examine the intra-individual variability, the intraclass correlation coefficient (ρ) for topography and CO measures were estimated. Results: The majority of the topography and CO measures were stable. Most stable were puff frequency (ρ = 0.88), number of puffs (ρ = 0.86), and puff duration (ρ = 0.80). Less stable were peak flow (ρ = 0.57) and total puff volume (ρ = 0.52). CONCLUSIONS: The results provide the first set of empirical evidence that most topography and CO measurements collected using the RWP from a single laboratory smoking session are stable such that they can be representative of a smoker's puffing behaviors and reproducible among 3 sessions spread equally across 3 weeks.
Authors: Wasim Maziak; Samer Rastam; Alan L Shihadeh; Asma Bazzi; Iman Ibrahim; Ghazi S Zaatari; Kenneth D Ward; Thomas Eissenberg Journal: Addict Behav Date: 2010-12-02 Impact factor: 3.913
Authors: Wasim Maziak; Samer Rastam; Iman Ibrahim; Kenneth D Ward; Alan Shihadeh; Thomas Eissenberg Journal: Nicotine Tob Res Date: 2009-05-06 Impact factor: 4.244
Authors: Melissa D Blank; Caroline O Cobb; Barbara Kilgalen; Janet Austin; Michael F Weaver; Alan Shihadeh; Thomas Eissenberg Journal: Drug Alcohol Depend Date: 2011-02-01 Impact factor: 4.492
Authors: Vaughan W Rees; Jennifer M Kreslake; Geoffrey Ferris Wayne; Richard J O'Connor; K Michael Cummings; Gregory N Connolly Journal: Drug Alcohol Depend Date: 2012-02-25 Impact factor: 4.492
Authors: Marielle C Brinkman; Jane C Chuang; Sydney M Gordon; Hyoshin Kim; Robyn R Kroeger; Gregory M Polzin; Patricia A Richter Journal: Inhal Toxicol Date: 2012-04 Impact factor: 2.724
Authors: Raed Bahelah; Joseph R DiFranza; Fouad M Fouad; Kenneth D Ward; Thomas Eissenberg; Wasim Maziak Journal: Tob Control Date: 2016-04-25 Impact factor: 7.552
Authors: Marielle C Brinkman; Hyoshin Kim; Stephanie S Buehler; Anna M Adetona; Sydney M Gordon; Pamela I Clark Journal: Tob Control Date: 2018-10-30 Impact factor: 7.552