Evidence map›Paper›PMID 27431900›Full record

ArticleBMJ open2016

Determinants of regular smoking onset in South Africa using duration analysis.

Nicole Vellios, Corné van Walbeek

Erratum issuedAbstract read
In one paragraph

Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Cigarette Prices and Smoking Experimentation Among Zimbabwean Children: A Survival Analysis of the 2014 Global Youth Tobacco Survey.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Article
  7. Article
  8. Article
  9. Review
  10. Effect of cigarette prices on cigarette consumption in Ghana.Drug and alcohol dependence reports · 2022
    Article
  11. Article
  12. Review
  13. Cigarette Prices and Smoking Among Youth in 16 African Countries: Evidence From the Global Youth Tobacco Survey.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2022
    Article
  14. Article
  15. The influence of smoking and HIV infection on pulmonary function.Southern African journal of HIV medicine · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Effects of Prices on Youth Cigarette Smoking and Tobacco Use Initiation in Ghana and Nigeria.International journal of environmental research and public health · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Nicole VelliosSchool of Economics, University of Cape Town, Cape Town, Western Cape, South Africa.
Corné van WalbeekSchool of Economics, University of Cape Town, Cape Town, Western Cape, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesSouth Africa has achieved significant success with its tobacco control policy. Between 1994 and 2012, the real price of cigarettes increased by 229%, while regular smoking prevalence decreased from about 31% to 18.2%.

methodsCigarette prices and socioeconomic variables are used to examine the determinants of regular smoking onset. We apply duration analysis techniques to the National Income Dynamics Study, a nationally representative survey of South Africa.

resultsWe find that an increase in cigarette prices significantly reduces regular smoking initiation among males, but not among females. Regular smoking among parents is positively correlated with smoking initiation among children. Children with more educated parents are less likely to initiate regular smoking than those with less educated parents. Africans initiate later and at lower rates than other race groups.

conclusionsAs the tobacco epidemic is shifting towards low-income and middle-income countries, there is an increasing urgency to perform studies in these countries to influence policy. Higher cigarette excise taxes, which lead to higher retail prices, reduce smoking prevalence by encouraging smokers to quit and by discouraging young people from starting smoking.

Indexed as

CommerceEducational StatusParentsRacial GroupsSmoking CessationAdolescentAdultAge of OnsetBlack PeopleChildCigarette SmokingFemaleHumansIncomeMaleMiddle AgedCigarette pricesExcise taxesLow/Middle income country

Identifiers

PMID27431900
PMCPMC4964680

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Registered trials

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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.