Evidence map›Paper›PMID 20930057›Full record

ArticleTobacco control2011

Secondhand tobacco smoke exposure in selected public places (PM2.5 and air nicotine) and non-smoking employees (hair nicotine) in Ghana.

Wilfred Agbenyikey, Edith Wellington, John Gyapong, Mark J Travers, Patrick N Breysse, Kathleen M McCarty, Ana Navas-Acien

Open access · hybridAbstract read
In one paragraph

Article in Tobacco control, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. Indoor Air Pollutants of PM2.5, Carbon Monoxide, Nicotine, and Carcinogens in Waterpipe Bars.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Support for smoke-free public places among adults in four countries in sub-Saharan Africa.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2020
    Article
  6. Article
  7. Indoor air quality in waterpipe cafés: exposure level to particulate matter.Environmental science and pollution research international · 2019
    Article
  8. Article
  9. Observational
  10. PM2.5 as a marker of exposure to tobacco smoke and other sources of particulate matter in Cairo, Egypt.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2016
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Protecting the world from secondhand tobacco smoke exposure: where do we stand and where do we go from here?Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2013
    Review
  17. Article
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 4 institutions in 2 countries.

Wilfred AgbenyikeyJohns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
Edith Wellington
John Gyapong
Mark J Travers
Patrick N Breysse
Kathleen M McCarty
Ana Navas-Acien
Johns Hopkins University · USGhana Health Service · GHRoswell Park Comprehensive Cancer Center · USYale University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSecondhand tobacco smoke (SHS) exposure is a global public health problem. Ghana currently has no legislation to prevent smoking in public places. To provide data on SHS levels in hospitality venues in Ghana the authors measured (1) airborne particulate matter <2.5 μm (PM(2.5)) and nicotine concentrations and (2) hair nicotine concentrations in non-smoking employees. Quantifying SHS exposure will provide evidence needed to develop tobacco control legislation.

methodPM(2.5) was measured for 30 min in 75 smoking and 13 non-smoking venues. Air nicotine concentrations were measured for 7 days in 8 smoking and 2 non-smoking venues. Additionally, 63 non-smoking employees provided hair samples for nicotine analysis.

resultCompared to non-smoking venues, smoking venues had markedly elevated PM(2.5) (median 553 [IQR 259-1038] vs 16.0 [14.0-17.0]μg/m(3)) and air nicotine (1.83 [0.91-4.25] vs 0.03 [0.02-0.04]μg/m(3)) concentrations. Hair nicotine concentrations were also higher in non-smoking employees working in smoking venues (median 2.49 [0.46-6.84] ng/mg) compared to those working in non-smoking venues (median 0.16 [0.08-0.79]ng/mg). Hair nicotine concentrations correlated with self-reported hours of SHS exposure (r=0.35), indoor air PM(2.5) concentrations (r=0.47) and air nicotine concentrations (r=0.63).

conclusionSHS levels were unacceptably high in public places in Ghana where smoking is allowed, despite a relatively low-smoking prevalence in the country. This is one of the first studies to ascertain SHS and hair nicotine in Africa. Levels were comparable to those measured in American, Asian and European countries without or before smoking bans. Implementing a comprehensive smoke-free legislation that protects workers and customers from exposure to secondhand smoke is urgently needed in Ghana.

Indexed as

RestaurantsWorkplaceGhanaHairHumansNicotineOccupational ExposurePublic HealthSmokingTobacco Smoke PollutionNicotineTobacco Smoke Pollution

Identifiers

PMID20930057
PMCPMC3045526
OpenAlexW2136174760

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.