Evidence map›Paper›PMID 25822819›Full record

ArticlePloS one2015

Investigation of hydrogen sulfide exposure and lung function, asthma and chronic obstructive pulmonary disease in a geothermal area of New Zealand.

Michael N Bates, Julian Crane, John R Balmes, Nick Garrett

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. The Scientific Basis for Occupational Exposure Limits for Hydrogen Sulphide-A Critical Commentary.International journal of environmental research and public health · 2021
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Hydrogen Sulfide Biology and Its Role in Cancer.Molecules (Basel, Switzerland) · 2022
    Review
  10. HJournal of advanced research · 2022
    Article
  11. Review
  12. Disrupted HAntioxidants (Basel, Switzerland) · 2021
    Review
  13. Hydrogen Sulfide and its Interaction with Other Players in Inflammation.Advances in experimental medicine and biology · 2021
    Article
  14. HIntensive care medicine experimental · 2020
    Review
  15. Article
  16. Article
  17. Article
  18. Hydrogen sulphide exposure in waste water treatment.Journal of occupational medicine and toxicology (London, England) · 2018
    Article
  19. Environmental toxicology of hydrogen sulfide.Nitric oxide : biology and chemistry · 2017
    Review
  20. 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 3 institutions in 2 countries.

Michael N BatesSchool of Public Health, University of California, Berkeley, California, United States of America.
Julian CraneSchool of Medicine and Health Sciences, University of Otago, Wellington, New Zealand.
John R BalmesSchool of Public Health, University of California, Berkeley, California, United States of America.
Nick GarrettFaculty of Health, Auckland University of Technology, Auckland, New Zealand.
University of California, Berkeley · USAuckland University of Technology · NZUniversity of Otago · NZ

Funding

Effects of Long-Term Low Level Hydrogen Sulfide ExposureR01ES014038 · NIEHS · UNIVERSITY OF CALIFORNIA BERKELEY · PI BATES, MICHAEL N · 2006 to 2010
$2.6M
NIEHS NIH HHS R01 ES014038NIEHS NIH HHS R01ES014038
6 · The paper itself

Abstract

backgroundResults have been conflicting whether long-term ambient hydrogen sulfide (H2S) affects lung function or is a risk factor for asthma or chronic obstructive pulmonary disease (COPD). Rotorua city, New Zealand, has the world's largest population exposed to ambient H2S-from geothermal sources.

objectivesWe investigated associations of H2S with lung function, COPD and asthma in this population.

methods1,204 of 1,639 study participants, aged 18-65 years during 2008-2010, provided satisfactory spirometry results. Residences, workplaces and schools over the last 30 years were geocoded. Exposures were estimated from data collected by summer and winter H2S monitoring networks across Rotorua. Four metrics for H2S exposure, representing both current and long-term (last 30 years) exposure, and also time-weighted average and peak exposures, were calculated. Departures from expected values for pre-bronchodilator lung function, calculated from prediction equations, were outcomes for linear regression models using quartiles of the H2S exposure metrics. Separate models examined participants with and without evidence of asthma or COPD, and never- and ever-smokers. Logistic regression was used to investigate associations of COPD (a post-bronchodilator FEV1/FVC < 70% of expected) and asthma (doctor-diagnosed or by FEV1 response to bronchodilator) with H2S exposure quartiles.

resultsNone of the exposure metrics produced evidence of lung function decrement. The logistic regression analysis showed no evidence that long-term H2S exposure at Rotorua levels was associated with either increased COPD or asthma risk. Some results suggested that recent ambient H2S exposures were beneficially associated with lung function parameters.

conclusionsThe study found no evidence of reductions in lung function, or increased risk of COPD or asthma, from recent or long-term H2S exposure at the relatively high ambient concentrations found in Rotorua. Suggestions of improved lung function associated with recent ambient H2S exposures require confirmation in other studies.

Indexed as

AdolescentAdultAir PollutantsAsthmaBronchodilator AgentsFemaleHumansHydrogen SulfideInhalation ExposureMaleMiddle AgedNew ZealandPulmonary Disease, Chronic ObstructiveRespiratory Physiological PhenomenaSpirometryYoung AdultAir PollutantsBronchodilator AgentsHydrogen Sulfide

Identifiers

PMID25822819
PMCPMC4378981
OpenAlexW2080837069

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.