Variability in Puff Topography and Exhaled CO in Waterpipe Tobacco Smoking.
Variability in Puff Topography and Exhaled CO in Waterpipe Tobacco Smoking.
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DOI：
10.18001/trs.2.4.2
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发表时间：
2016-10-01
影响因子：
--
通讯作者：
Clark, Pamela I
中科院分区：
文献类型：
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作者：
Kim, Hyoshin;Brinkman, Marielle C;Clark, Pamela I
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 (rho) for topography and CO measures were estimated. Results: The majority of the topography and CO measures were stable. Most stable were puff frequency (rho = 0.88), number of puffs (rho = 0.86), and puff duration (rho = 0.80). Less stable were peak flow (rho = 0.57) and total puff volume (rho = 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.
