COVID-19 in Polish Ice Swimmers.

NCT04817280 | Completed

• 1 other identifier: KB-03/139/2021
• Study Type: observational
• Target: 2,534
• Locations: 1 country
• Sites: 3

Brief Summary

Ice swimming is an increasingly common phenomenon in Poland. It has been confirmed that it has a beneficial effect on health by increasing the natural non-specific immunity to infections. In the face of the current Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) pandemic causing Coronavirus Disease 2019 (COVID-19), researchers decided to use a survey to check the incidence of COVID-19 among Polish ice swimmers, as well as recent ailments. Then, the researchers will compare the obtained results with epidemiological data for Poland.Researchers will also investigate the relationship between susceptibility to SARS-CoV-2 infection and the blood group and Rh factor among ice swimmers.

Conditions

Covid19; SARS-CoV Infection; Resistance, Disease; Hypothermia; Hypothermia Due to Cold Environment

Keywords

Ice Swim; Immune System; Immunity; Temporarily cooling down

Outcome Measures

Primary Outcomes (6)

• Assessment of the incidence of COVID-19 among ice swimmers compared to the general population.

  Comparison of the data obtained from surveys collected among ice swimmers with the data published in official channels for the general population during this period.

  47 days.

• Assessment of the frequency of asymptomatic SARS-CoV-2 infection among ice swimmers compared to the general population.

  Comparison of the data obtained from surveys collected among ice swimmers with the data published in official channels for the general population during this period.

  47 days.

• Assessment of the frequency of occurrence of particular symptoms of SARS-CoV-2 infection among ice swimmers compared to the general population.

  Comparison of the data obtained from surveys collected among ice swimmers with the data published in official channels for the general population during this period.

  47 days.

• Assessment of the frequency of COVID-19 treatment in an outpatient, inpatient and intensive care unit among ice swimmers compared to the general population.

  Comparison of the data obtained from surveys collected among ice swimmers with the data published in official channels for the general population during this period.

  47 days.

• Assessment of the impact of parameters and ice swimming strategies on the likelihood of developing COVID-19, the occurrence of individual symptoms of the disease and the severity of its course.

  Inference from data obtained from surveys collected among ice swimmers.

  47 days.

• Assessment of the influence of blood group on susceptibility to SARS-CoV-2 infection among ice swimmers.

  Inference from data obtained from surveys collected among ice swimmers.

  47 days.

Secondary Outcomes (1)

• Assessment of the immunity of the ice swimmer's immune system compared to the general population.

  47 days.

Study Arms (1)

Ice Swimmers Group.

No intervention. Data obtained from Polish ice swimmers reported by them retrospectively in the questionnaire.

Other: Ice Swimming

Interventions

Ice Swimming OTHER

The intervention is not made in the course of a research study. Ice swimming has been introduced earlier by a given group. The group was made up of people who already swim in ice.

Ice Swimmers Group.

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Surveys are distributed en masse among ice swimmers from Poland. Comparative data for the control group is derived from officially published national and regional pandemic data.

You may qualify if:

• ice swimmers

You may not qualify if:

• not active ice swimmers

Sponsors & Collaborators

• Wroclaw Medical University: lead

Study Sites (3)

Department of Public Health at Wroclaw Medical University

Wroclaw, Dolny Slask, 51-618, Poland

Location

Department of Radiotherapy of Multidisciplinary Provincial Hospital

Gorzów Wielkopolski, Lubusz Voivodeship, 66-400, Poland

Location

Treasury Medical Company

Zielona Góra, Lubusz Voivodeship, 65-031, Poland

Location

MeSH Terms

Conditions

COVID-19; Severe Acute Respiratory Syndrome; Disease Resistance; Hypothermia

Condition Hierarchy (Ancestors)

Pneumonia, Viral; Pneumonia; Respiratory Tract Infections; Infections; Virus Diseases; Coronavirus Infections; Coronaviridae Infections; Nidovirales Infections; RNA Virus Infections; Lung Diseases; Respiratory Tract Diseases; Disease Attributes; Pathologic Processes; Pathological Conditions, Signs and Symptoms; Body Temperature Changes; Signs and Symptoms

Study Officials

• Sylwia Sulimiera Michalak, MD, PhD

  Department of Pharmacology and Toxicology, Medical University of Zielona Gora

  STUDY DIRECTOR

• Edyta Wolny-Rokicka, MD, PhD

  Department and Center of Radiotherapy, Multidisciplinary Provincial Hospital in Gorzow Wielkopolski

  STUDY DIRECTOR

• Andrzej Tukiendorf, Prof.

  Department of Public Health, Wroclaw Medical University

  STUDY CHAIR

• Lukasz K Wysoczanski, MD

  Department of Family Medicine, Wroclaw Medical University

  PRINCIPAL INVESTIGATOR

• Paulina N Wysoczanska, MD

  Department of Family Medicine, Wroclaw Medical University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 24, 2021
• First Posted: March 26, 2021
• Study Start: December 1, 2020
• Primary Completion: January 17, 2021
• Study Completion: March 1, 2021
• Last Updated: April 9, 2021

Record last verified: 2021-04

Data Sharing

• IPD Sharing: Will not share

Locations

PL (3)