Evidence map›Paper›PMID 34831878›Full record

ArticleInternational journal of environmental research and public health2021

Short-Term Cumulative Exposure to Ambient Traffic-Related Black Carbon and Blood Pressure: MMDA Traffic Enforcers' Health Study.

Zypher Jude G Regencia, Godofreda V Dalmacion, Antonio D Ligsay, Emmanuel S Baja

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 13 citations in OpenAlex.

  1. Exploratory thresholds for ambient PMBMC public health · 2026
    Article
  2. Effects of Short-Term Exposure to Air Pollutants on Real-Time Blood Pressure: A Wearable Device-Based Study in China.Journal of urban health : bulletin of the New York Academy of Medicine · 2025
    Article
  3. Article
  4. Article
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

4 authors at 2 institutions in 1 country.

Zypher Jude G RegenciaDepartment of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines.ORCID 0000-0002-3383-6336
Godofreda V DalmacionDepartment of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines.ORCID 0000-0001-9212-9087
Antonio D LigsayThe Graduate School & College of Science, University of Santo Tomas, Manila 1008, Philippines.ORCID 0000-0001-7469-7670
Emmanuel S BajaDepartment of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines.ORCID 0000-0002-3888-8880
University of the Philippines Manila · PHSt. Luke's Medical Center · PH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure to traffic-related air pollution is linked with acute alterations in blood pressure (BP). We examined the cumulative short-term effect of black carbon (BC) exposure on systolic (SBP) and diastolic (DBP) BP and assessed effect modification by participant characteristics. SBP and DBP were repeatedly measured on 152 traffic enforcers. Using a linear mixed-effects model with random intercepts, quadratic (QCDL) and cubic (CCDL) constrained distributed lag models were fitted to estimate the cumulative effect of BC concentration on SBP and DBP during the 10 hours (daily exposure) and 7 days (weekly exposure) before the BP measurement. Ambient BC was related to increased BP with QCDL models. An interquartile range change in BC cumulative during the 7 days before the BP measurement was associated with increased BP (1.2% change in mean SBP, 95% confidence interval (CI), 0.1 to 2.3; and 0.5% change in mean DBP, 95% CI, -0.8 to 1.7). Moreover, the association between the 10-h cumulative BC exposure and SBP was stronger for female (4.0% change, 95% CI: 2.1-5.9) versus male and for obese (2.9% change, 95% CI: 1.0-4.8) vs. non-obese traffic enforcers. Short-term cumulative exposure to ambient traffic-related BC could bring about cardiovascular diseases through mechanisms involving increased BP.

Indexed as

Air PollutantsAir Pollution3,4-MethylenedioxyamphetamineBlood PressureCarbonFemaleHumansMaleParticulate Matter3,4-MethylenedioxyamphetamineAir PollutantsCarbonMMDAParticulate Matterblack carbondiastolic blood pressureMMDA traffic enforcersobesitysexsystolic blood pressure

Identifiers

PMID34831878
PMCPMC8619089
OpenAlexW3201815603

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.