Evidence map›Paper›PMID 21277706›Full record

Trial reportDrug and alcohol dependence2011

Acute effects of waterpipe tobacco smoking: a double-blind, placebo-control study.

Melissa D Blank, Caroline O Cobb, Barbara Kilgalen, Janet Austin, Michael F Weaver, Alan Shihadeh, Thomas Eissenberg

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Drug and alcohol dependence, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Waterpipe Size Matters: The Effect of Waterpipe Size on Toxicant Exposures and Subjective Experiences.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
    Trial
  3. Trial
  4. Waterpipe Tobacco Warnings: An Experimental Study Among a Nationally Representative Sample of US Young Adults.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2021
    Trial
  5. CO exposure and puff topography are associated with Lebanese waterpipe dependence scale score.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2013
    Trial
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Waterpipe smoking: a review of pulmonary and health effects.European respiratory review : an official journal of the European Respiratory Society · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Observational
  20. Article

1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 3 countries.

Melissa D BlankDepartment of Psychology, Virginia Commonwealth University, Richmond, VA 23298-0205, USA.
Caroline O Cobb
Barbara Kilgalen
Janet Austin
Michael F Weaver
Alan Shihadeh
Thomas Eissenberg
Virginia Commonwealth University · USSyrian Center for Tobacco Studies · SY

Funding

Waterpipe tobacco smoke: toxicant exposure and effectsR01CA120142 · NCI · VIRGINIA COMMONWEALTH UNIVERSITY · PI EISSENBERG, THOMAS EVAN · 2008 to 2012
$2.8M
Responding to the changing tobacco epidemic in the Eastern Mediterranean RegionR01DA024876 · NIDA · UNIVERSITY OF MEMPHIS · PI MAZIAK, WASIM · 2007 to 2011
$1.6M
Evaluating the acute effects of caffeinated waterpipe tobaccoF31DA028102 · NIDA · VIRGINIA COMMONWEALTH UNIVERSITY · PI COBB, CAROLINE O · 2010 to 2011
$62k
NCI NIH HHS R01 CA120142NCI NIH HHS R01CA120142NIDA NIH HHS F31 DA028102NIDA NIH HHS F31DA028102NIDA NIH HHS R01 DA024876NIDA NIH HHS R01DA024876
6 · The paper itself

Abstract

backgroundWaterpipe tobacco smoking usually involves heating flavored tobacco with charcoal and inhaling the resulting smoke after it has passed through water. Waterpipe tobacco smoking increases heart rate and produces subjective effects similar to those reported by cigarette smokers. These responses are thought to be nicotine-mediated, though no placebo-control studies exist. Accordingly, this double-blind, placebo-control study compared the acute physiological and subjective effects of waterpipe tobacco smoking to those produced when participants used a waterpipe to smoke a flavor-matched, tobacco-free preparation.

methodsOccasional waterpipe tobacco smokers (n = 37; 2-5 monthly smoking episodes for ≥ 6 months) completed two double-blind, counterbalanced sessions that differed by product: preferred brand/flavor of waterpipe tobacco or flavor-matched, tobacco-free preparation. For each 45-min, ad lib smoking episode blood and expired air CO were sampled, cardiovascular and respiratory response were measured, and subjective response was assessed.

resultsWaterpipe tobacco smoking significantly increased mean (± SEM) plasma nicotine concentration (3.6 ± 0.7 ng/ml) and heart rate (8.6 ± 1.4 bpm) while placebo did not (0.1 ± 0.0 ng/ml; 1.3 ± 0.9b pm). For carboxyhemoglobin (COHb) and expired air CO, significant increases were observed for tobacco (3.8 ± 0.4%; 27.9 ± 2.6 ppm) and for placebo (3.9 ± 0.4%; 27.7 ± 3.3 ppm) with no differences across condition. Independent of condition, symptoms of nicotine/tobacco abstinence (e.g., "urges to smoke", "anxious") were reduced and direct effects (e.g., "dizzy", "satisfy") increased. DISCUSSION: These results from the first placebo-control study of waterpipe tobacco smoking demonstrate that waterpipe-induced heart rate increases are almost certainly mediated by nicotine though the subjective effects observed in these occasional smokers were not.

Indexed as

AdultBehavior, AddictiveCarbon MonoxideCarboxyhemoglobinDouble-Blind MethodFemaleHeart RateHumansInhalation ExposureMaleMiddle AgedNicotineNicotinic AgonistsNitrous OxidePlacebosRespiratory Function TestsCarbon MonoxideCarboxyhemoglobinNicotineNicotinic AgonistsNitrous OxidePlacebosWater

Identifiers

PMID21277706
PMCPMC3098931
OpenAlexW1969216217

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.