Evidence map›Paper›PMID 27007232›Full record

Observational studyPloS one2016

Association between Smoking Status and Obesity in a Nationwide Survey of Japanese Adults.

Taku Watanabe, Ichizo Tsujino, Satoshi Konno, Yoichi M Ito, Chisa Takashina, Takahiro Sato, Akira Isada, Hiroshi Ohira, Yoshinori Ohtsuka, Yuma Fukutomi and 7 more

Abstract readObservational Study
In one paragraph

Observational study in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

  1. Trial
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  10. Interactive Relations of Body Mass Index, Cardiorespiratory Fitness, and Sex to Cognitive Function in Older Adults.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2024
    Article
  11. Article
  12. Article
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  14. Obesity and lung cancer-a narrative review.Journal of thoracic disease · 2023
    Review
  15. Review
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  17. Review
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  20. Cigarette Smoking and Estrogen-Related Cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2021
    Review
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

17 authors.

Taku WatanabeFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Ichizo TsujinoFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Satoshi KonnoFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Yoichi M ItoDepartment of Biostatistics, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
Chisa TakashinaFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Takahiro SatoFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Akira IsadaFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Hiroshi OhiraFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Yoshinori OhtsukaFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.
Yuma FukutomiClinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan.
Hiroyuki NakamuraDepartment of Environmental and Preventive Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
Yukio KawagishiDepartment of Internal Medicine, Kurobe City Hospital, Kurobe, Toyama, Japan.
Chiharu OkadaDepartment of Medicine, Headquarter of National Hospital Organization, Tokyo, Japan.
Nobuyuki HizawaDepartment of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
Masami TaniguchiClinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan.
Akira AkasawaDepartment of Allergy, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan.
Masaharu NishimuraFirst Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA positive association between the number of cigarettes smoked per day and obesity has been reported, whereas how other smoking-related indices, such as pack-years and duration of smoking, are related with obesity has been less investigated. We analyzed the age-adjusted cross-sectional association between smoking and obesity in a general Japanese population.

methodsWe used data from a nationwide epidemiological study of Japanese adults (N = 23,106). We compared the prevalence of obesity (defined as body mass index ≥ 25kg/m2) among groups classified by smoking behavior, pack-years, number of cigarettes per day, duration of smoking, and duration and time of smoking cessation.

resultsIn men, current smokers had a lower odds ratio (OR) for obesity of 0.80 (95% confidence interval (CI): 0.72-0.88) compared to non-smokers, whereas past smokers had a higher OR of 1.23 (95% CI: 1.09-1.37) compared to current smokers. In women, there were no differences in obesity between the three groups classified by smoking behavior. However, in both sexes, the prevalence of obesity tended to increase with pack-years and the number of cigarettes per day, but not with duration of smoking in current and past smokers. Further, in male smokers, the risks for obesity were markedly higher in short-term heavy smokers compared with long-term light smokers, even with the same number of pack-years. Regarding the impact of smoking cessation, female past smokers who quit smoking at an age > 55-years had an elevated OR of 1.60 (95% CI:1.05-2.38) for obesity.

conclusionsIn a general Japanese population, obesity is progressively associated with pack-years and number of cigarettes per day, but not with the duration of smoking. When investigating the association between obesity and cigarette smoking, the daily smoking burden and the duration of smoking require to be independently considered.

Indexed as

AdultAgedAsian PeopleBody Mass IndexCross-Sectional StudiesFemaleHumansMaleMiddle AgedObesityOdds RatioPrevalenceSmokingSmoking CessationSurveys and QuestionnairesTobacco Use Disorder

Identifiers

PMID27007232
PMCPMC4805304

What OpenQuestion holds

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LicenceCC BY
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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.