Evidence map›Paper›PMID 31399463›Full record

ArticleBMJ open2019

Coronary heart disease, hypertension and use of biomass fuel among women: comparative cross-sectional study.

Zafar Fatmi, Georgia Ntani, David Coggon

Open access · goldAbstract 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 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
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

9 citing papers in PubMed, 29 citations in OpenAlex.

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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

3 authors at 2 institutions in 2 countries.

Zafar FatmiDepartment of Community Health Sciences, Aga Khan University, Karachi, Sindh, Pakistan zafar.fatmi@aku.edu.ORCID 0000-0001-7212-6858
Georgia NtaniMRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
David CoggonMRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
MRC Lifecourse Epidemiology Unit · GBAga Khan University · PK

Funding

Medical Research Council MC_PC_15015Medical Research Council MC_U147585823Medical Research Council MC_UP_A620_1018Medical Research Council MC_UU_12011/5
6 · The paper itself

Abstract

objectivesTo explore the associations of hypertension and coronary heart disease (CHD) with use of biomass fuel for cooking.

designComparative cross-sectional study.

settingRural villages in Sindh, Pakistan.

participantsWomen aged ≥40 years who had used biomass fuel for cooking for at least the last year (n=436), and a comparison group (n=414) who had cooked only with non-biomass fuel during the last year were recruited through door-to-door visits. None of those who were invited to take part declined. PRIMARY AND SECONDARY OUTCOME MEASURES: Hypertension was determined from blood pressure measurements and use of medication. CHD was assessed by three measures: history of angina (Rose angina questionnaire), previous history of 'heart attack', and definite or probable changes of CHD on ECG. Potentially confounding risk factors were ascertained by questionnaire and anthropometry. Associations of hypertension and CHD with use of biomass and other risk factors were assessed by logistic regression, and summarised by ORs with 95% CIs.

resultsAfter adjustment for potential confounders, there was no association of hypertension (OR: 1.0, 95% CI 0.8 to 1.4) angina (OR: 1.0, 95% CI 0.8 to 1.4), heart attack (OR: 1.2, 95% 0.7 to 2.2) or ECG changes of CHD (OR: 0.8, 95% CI 0.6 to 1.2) with current use of biomass for cooking. Nor were any associations apparent when analyses were restricted to long-term (≥10 years) users and non-users of biomass fuel.

conclusionsA linked air monitoring study indicated substantially higher airborne concentrations of fine particulate matter in kitchens where biomass was used for cooking. It is possible that associations with CHD and hypertension were missed because most of the comparison group had used biomass for cooking at some time in the past, and risk remains elevated for many years after last exposure.

Indexed as

BiomassAdultAgedAir Pollution, IndoorCookingCoronary DiseaseCross-Sectional StudiesFemaleHumansHypertensionMiddle AgedPakistanRisk FactorsRural PopulationSmokeSmokebiomass fuelcoronary heart diseaseepidemiologyhypertensionpublic healthwomen

Identifiers

PMID31399463
PMCPMC6701594
OpenAlexW2968624788

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.