Evidence map›Paper›PMID 38866574›Full record

ArticleBMJ open2024

Burden of recreational water illness due to exposure to cyanobacteria and their toxins in freshwater beaches in Canada: protocol of a prospective cohort study.

Ian Young, J Johanna Sanchez, Fatih Sekerciouglu, Binyam N Desta, Claire Holeton, Dylan Lyng, Victoria Peczulis, Shane Renwick, Teresa Brooks, Jordan Tustin

Registry-linked trialAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06579170 (Burden of Recreational Water Illness Due to Exposure to Cyanobacteria and Their Toxins in Freshwater Beaches in Canada), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

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.

NCT06579170 active not recruitingnot on this map

Burden of Recreational Water Illness Due to Exposure to Cyanobacteria and Their Toxins in Freshwater Beaches in Canada: a Prospective Cohort Study

TypeobservationalSponsorToronto Metropolitan UniversityRan2024 to 2026Enrolled2,500ConditionsGastroenteritis, Gastrointestinal Diseases, Eye Infections, Skin InfectionsArmsCyanobacteria exposure during water contact
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Ian YoungOccupational and Public Health, Toronto Metropolitan University, Toronto, Ontario, Canada iyoung@torontomu.ca.ORCID 0000-0002-5575-5174
J Johanna SanchezOccupational and Public Health, Toronto Metropolitan University, Toronto, Ontario, Canada.
Fatih SekerciougluOccupational and Public Health, Toronto Metropolitan University, Toronto, Ontario, Canada.
Binyam N DestaOccupational and Public Health, Toronto Metropolitan University, Toronto, Ontario, Canada.
Claire HoletonEnvironmental Monitoring and Reporting Branch, Ontario Ministry of the Environment, Toronto, Ontario, Canada.
Dylan LyngWater Science and Watershed Management, Government of Manitoba, Winnipeg, Manitoba, Canada.
Victoria PeczulisWindsor Essex County Health Unit, Windsor, Ontario, Canada.
Shane RenwickCanadian Veterinary Medical Association, Ottawa, Ontario, Canada.
Teresa BrooksWater and Air Quality Bureau, Health Canada, Ottawa, Ontario, Canada.
Jordan TustinOccupational and Public Health, Toronto Metropolitan University, Toronto, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCyanobacterial blooms are increasingly common in freshwater sources used for swimming and other recreational water contact activities in Canada. Many species of cyanobacteria can produce toxins that affect human and animal health, but there are limited data on the risk of illness associated with water contact at impacted beaches. METHODS AND ANALYSIS: This study will investigate the incidence of recreational water illness due to exposure to cyanobacterial blooms and their toxins in four targeted and popular freshwater beaches in Ontario, Manitoba and Nova Scotia, Canada. A prospective cohort design and One Health approach will be used. On-site recruitment of recreational water users will be conducted at two beaches per year during the summers of 2024 and 2025. The population of interest includes recreational water users of any age and their pet dogs. After enrolment, an in-person survey will determine beach exposures and confounding factors, and a 3-day follow-up survey will ascertain any acute illness outcomes experienced by participants or their dogs. The target sample size is 2500 recreational water users. Water samples will be taken each recruitment day and analysed for cyanobacterial indicators (pigments), cell counts and toxin levels. Bayesian regression analysis will be conducted to estimate the association with water contact, cyanobacterial levels and risks of different acute illness outcomes. ETHICS AND DISSEMINATION: This study has been approved by the Toronto Metropolitan University Research Ethics Board (REB 2023-461). Study results will be published in a peer-reviewed journal and as infographics on a project website.

Indexed as

Bathing BeachesCyanobacteriaFresh WaterAnimalsBacterial ToxinsBayes TheoremCanadaCyanobacteria ToxinsDogsEnvironmental ExposureHarmful Algal BloomHumansManitobaMarine ToxinsNova ScotiaOntarioBacterial ToxinsCyanobacteria ToxinsMarine ToxinsClimate ChangeEPIDEMIOLOGYINFECTIOUS DISEASESPUBLIC HEALTHSurveys and Questionnaires

Identifiers

PMID38866574
PMCPMC11177695

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.