Evidence map›Paper›PMID 20008154›Full record

ArticleTobacco control2010

A cross-sectional study on levels of second-hand smoke in restaurants and bars in five cities in China.

R L Liu, Y Yang, M J Travers, G T Fong, R J O'Connor, A Hyland, L Li, Y Nan, G Z Feng, Q Li and 1 more

Abstract read
In one paragraph

Article in Tobacco control, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Indoor air quality in waterpipe cafés: exposure level to particulate matter.Environmental science and pollution research international · 2019
    Article
  2. Article
  3. 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
  4. Article
  5. Article
  6. Smoking ban and indoor air quality in restaurants in Mumbai, India.Indian journal of occupational and environmental medicine · 2011
    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

11 authors.

R L LiuChinese National Center for Disease Control and Prevention, Beijing, China. ruiling_liu@berkeley.edu
Y Yang
M J Travers
G T Fong
R J O'Connor
A Hyland
L Li
Y Nan
G Z Feng
Q Li
Y Jiang

Funding

Project 3: Policy Effects on Cigarette Design, Emissions &BehaviorP50CA111236 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI CUMMINGS, KENNETH MICHAEL · 2004 to 2009
$8.2M
Tobacco Control Policy Evaluation in China and South Korea: The ITC Asia ProjectR01CA125116 · NCI · UNIVERSITY OF WATERLOO · PI FONG, GEOFFREY T · 2007 to 2011
$2.8M
NCI NIH HHS P50 CA111236NCI NIH HHS R01 CA125116
6 · The paper itself

Abstract

objectivesTo assess indoor second-hand smoke (SHS) exposure in restaurants and bars via PM(2.5) (fine particles 2.5 μm in diameter and smaller) level measurements in five cities in China.

methodsThe study was conducted from July to September in 2007 in Beijing, Xi'an, Wuhan, Kunming and Guiyang. Portable aerosol monitors were used to measure PM(2.5) concentrations in 404 restaurants and bars. The occupant density and the active smoker density were calculated for each venue sampled.

resultsAmong the 404 surveyed venues, 23 had complete smoking bans, 9 had partial smoking bans and 313 (77.5%) were observed to have allowed smoking during sampling. The geometric mean of indoor PM(2.5) levels in venues with smoking observed was 208 μg/m(3) and 99 μg/m(3) in venues without observed smoking. When outdoor PM(2.5) levels were adjusted, indoor PM(2.5) levels in venues with smoking observed were consistently significantly higher than in venues without smoking observed (F=80.49, p<0.001). Indoor PM(2.5) levels were positively correlated with outdoor PM(2.5) levels (partial rho=0.37 p<0.001) and active smoker density (partial rho=0.34, p<0.001).

conclusionsConsistent with findings in other countries, PM(2.5) levels in smoking places are significantly higher than those in smoke-free places and are strongly related to the number and density of active smokers. These findings document the high levels of SHS in hospitality venues in China and point to the urgent need for comprehensive smoke-free laws in China to protect the public from SHS hazards, as called for in Article 8 of the Framework Convention on Tobacco Control, which was ratified by China in 2005.

Indexed as

Public HealthAir Pollution, IndoorChinaCross-Sectional StudiesData CollectionEnvironmental ExposureEnvironmental MonitoringHumansRestaurantsSmokingTobacco Smoke PollutionTobacco Smoke Pollution

Identifiers

PMID20008154
PMCPMC2976000

What OpenQuestion holds

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LicenceCC BY-NC
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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.