Evidence map›Paper›PMID 29485234›Full record

Trial reportJournal of veterinary internal medicine2018

Effect of ionization, bedding, and feeding on air quality in a horse stable.

Esther Willemijn Siegers, Milou Anthonisse, Frank J C M van Eerdenburg, Jan van den Broek, Inge M Wouters, Cornélie Martine Westermann

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of veterinary internal medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.6field-weighted citation impact, top 8% 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

11 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Environmental Management of Equine Asthma.Animals : an open access journal from MDPI · 2024
    Review
  8. Article
  9. New animal-based measures to assess welfare in dromedary camels.Tropical animal health and production · 2021
    Article
  10. Article
  11. Comparative Review of Asthma in Farmers and Horses.Current allergy and asthma reports · 2019
    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

6 authors at 2 institutions in 1 country.

Esther Willemijn SiegersEquine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.ORCID http://orcid.org/0000-0001-6492-0488
Milou AnthonisseEquine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Frank J C M van EerdenburgFarm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Jan van den BroekFarm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Inge M WoutersInstitute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Cornélie Martine WestermannEquine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.ORCID http://orcid.org/0000-0002-0942-5860
University of Applied Sciences Utrecht · NLUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOrganic dust is associated with Equine asthma. Ionization should reduce airborne dust levels.

objectivesTo determine the effect of ionization of air, type of bedding, and feed on the levels of airborne dust, endotoxin, and fungal colonies in horse stables. ANIMALS: 24 healthy University-owned horses occupied the stables.

methodsA randomized controlled cross-over study. Four units with 6 stables were equipped with an ionization installation (25 VA, 5000 Volt Direct Current). Horses were kept either on wood shavings and fed haylage (2 units), or on straw and fed dry hay (2 units). Measurements were performed with and without activated ionization, during daytime and nighttime, repeatedly over the course of a week and repeatedly during 4-6 weeks. Statistical analysis was performed using a mixed effect model with Akaike's Information Criterion for model reduction and 95% profile (log) likelihood confidence intervals (CI).

resultsIonization did not alter concentrations of dust, endotoxin, or fungi, fewer. In the units with straw and hay, the concentration of dust, endotoxin, and fungi (difference in logarithmic mean 1.92 (95%CI 1.71-2.12); 2.86 (95%CI 2.59-3.14); 1.75 (95%CI 1.13-2.36)) were significantly higher compared to wood shavings and haylage. CONCLUSIONS AND CLINICAL IMPORTANCE: The installation of a negative air-ionizer in the horse stable did not reduce concentrations of dust, endotoxin, and viable fungal spores. The substantial effect of low dust bedding and feed is confirmed.

Indexed as

Air IonizationAir Pollution, IndoorAnimal HusbandryHorsesHousing, AnimalAnimal FeedAnimalsBedding and LinensCross-Over Studiesairbornedustendotoxinfungi

Identifiers

PMID29485234
PMCPMC5980306
OpenAlexW2791317652

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.