Evidence map›Paper›PMID 31630110›Full record

ArticleBMJ open2019

Prevalence and correlates of smoking and nicotine dependence: results of a nationwide cross-sectional survey among Singapore residents.

Shazana Shahwan, Edimansyah Abdin, Saleha Shafie, Sherilyn Chang, Rajeswari Sambasivam, Yunjue Zhang, Janhavi Ajit Vaingankar, Yik Ying Teo, Derrick Heng, Siow Ann Chong and 1 more

Abstract read
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
–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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Health-related quality of life among multiethnic public polyclinic users in Singapore and associated factors: a cross-sectional study.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
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  8. Prevalence of nicotine dependence among smokers aged 40 years and older in China.Chinese medical journal pulmonary and critical care medicine · 2024
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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.

Shazana ShahwanResearch Division, Institute of Mental Health, Singapore, Singapore Shazana_MOHAMED_SHAHWAN@imh.com.sg.ORCID 0000-0003-4584-0751
Edimansyah AbdinResearch Division, Institute of Mental Health, Singapore, Singapore.
Saleha ShafieResearch Division, Institute of Mental Health, Singapore, Singapore.
Sherilyn ChangResearch Division, Institute of Mental Health, Singapore, Singapore.
Rajeswari SambasivamResearch Division, Institute of Mental Health, Singapore, Singapore.
Yunjue ZhangResearch Division, Institute of Mental Health, Singapore, Singapore.
Janhavi Ajit VaingankarResearch Division, Institute of Mental Health, Singapore, Singapore.
Yik Ying TeoSaw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
Derrick HengEpidemiology & Disease Control Division, Ministry of Health, Government of Singapore, Singapore, Singapore.
Siow Ann ChongResearch Division, Institute of Mental Health, Singapore, Singapore.
Mythily SubramaniamResearch Division, Institute of Mental Health, Singapore, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSince the Singapore Mental Health Study in 2010 which reported a 16.0% prevalence rate for current smokers and 4.5% for nicotine dependence, new anti-smoking strategies have been implemented. The aim of this study was to compare smoking trends from the 2010 study with the second Singapore Mental Health Study in 2016 (SMHS 2016).

methodsA survey of 6126 individuals aged 18 years and above randomly selected among Singapore residents was conducted using the same methodology as the 2010 study. The measures used in this analysis were sociodemographic questions, the Composite International Diagnostic Interview which assessed for psychiatric disorders, the Fagerstrom Test for Nicotine Dependence and a list of chronic physical conditions that were prevalent in Singapore. Logistic regression analyses were used to test for associations between smoking/nicotine-dependence and other measures.

resultsIn the SMHS 2016, 16.1% were current smokers and 3.3% were nicotine-dependent. As compared with non-smokers, current smokers were more likely to be younger, male gender, of ethnic minority and had lower/vocational education level. Younger age, male gender, lower/vocational education and psychiatric disorders (major depression, bipolar disorder and alcohol use disorders) predicted nicotine dependence. No associations were found between nicotine dependence and any of the chronic conditions.

conclusionThe prevalence of current smokers in the population has plateaued while that of nicotine dependence has decreased from 2010. However, the study did not investigate the use of e-cigarettes. Inequalities in smoking and nicotine dependence continue to pervade the population particularly among those of ethnic minority, lower/vocational education and the mentally ill.

Indexed as

AdolescentAdultAgedAge DistributionCross-Sectional StudiesEducational StatusFemaleHealth SurveysHumansMaleMental DisordersMiddle AgedPrevalenceSex DistributionSingaporeSmokingcorrelatesnicotine dependenceprevalencepsychiatricsmoking

Identifiers

PMID31630110
PMCPMC6803088

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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.