Evidence map›Paper›PMID 28213785›Full record

ArticleInternational journal of public health2017

Passive smoking and chronic obstructive pulmonary disease mortality: findings from the Japan collaborative cohort study.

Shigekazu Ukawa, Akiko Tamakoshi, Hiroshi Yatsuya, Kazumasa Yamagishi, Masahiko Ando, Hiroyasu Iso, JACC Study Group

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Article in International journal of public health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

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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

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

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Shigekazu UkawaDepartment of Public Health, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
Akiko TamakoshiDepartment of Public Health, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan. tamaa@med.hokudai.ac.jp.
Hiroshi YatsuyaDepartment of Public Health, Fujita Health University, Aichi, Japan.
Kazumasa YamagishiDepartment of Public Health Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
Masahiko AndoCenter for Advanced Medicine and Clinical Research, Nagoya University Hospital, Aichi, Japan.
Hiroyasu IsoPublic Health, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Osaka, Japan.
JACC Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo elucidate the association between passive smoking at home and chronic obstructive pulmonary disease (COPD) mortality via a large-scale nationwide cohort study in Japan.

methodsNever smokers (n = 34,604) aged 40-79 years at baseline (1988-1990; 4884 men, 29,720 women) were included in the analysis. Passive smoking at home was measured based on self-reported frequency of weekly exposure to passive smoking at home. An inverse probability of treatment-weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for COPD mortality.

resultsDuring a median follow-up of 16.4 years, 33 participants (10 men, 23 women) died of COPD. The HR for participants exposed to passive smoking at home ≤4 days per week or those who had almost daily exposure to passive smoking at home had a significantly increased risk of COPD mortality (HR 2.40, 95% CI 1.39-4.15, HR 2.88, 95% CI 1.68-4.93, respectively).

conclusionsThe present findings suggest that avoiding passive smoking at home may be beneficial for preventing death due to COPD among never smokers.

Indexed as

Cohort StudiesEnvironmental ExposureFemaleHumansJapanMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRisk FactorsSurveys and QuestionnairesTobacco Smoke PollutionTobacco Smoke PollutionChronic obstructive pulmonary diseaseCohort studyMortalityPassiveSmoking

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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.