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OpenTrials
Completed

NCT Number: NCT04817280

COVID-19 in Polish Ice Swimmers.

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.

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Key information

Conditions

Covid19 Body Temperature Changes COVID-19 Coronaviridae Infections Coronavirus Infections Disease Attributes Disease Resistance Hypothermia Hypothermia Due to Cold Environment Infections Lung Diseases Nidovirales Infections Pathologic Processes Pathological Conditions, Signs and Symptoms Pneumonia Pneumonia, Viral RNA Virus Infections Resistance, Disease Respiratory Tract Diseases Respiratory Tract Infections SARS-CoV Infection Severe Acute Respiratory Syndrome Signs and Symptoms Virus Diseases

Sex eligibility

All sexes

Study type

Observational

Primary location

Department of Public Health at Wroclaw Medical University, Wroclaw, Dolny Slask, Poland

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About this study

The research tool is an original questionnaire compiled by a team of experts conducting the study. The survey includes questions about sociodemographic data, such as age and gender and blood type in AB0 system with Rh factor, and questions about the frequency of ice swimming, the duration of a single session, and since when respondents have been ice swimming. There was also a question about the respondents' compliance with the restrictions and recommendations related to the pandemic and contacts with people with confirmed SARS-CoV-2 infection. In the survey, researchers ask about the infectious symptoms experienced during the pandemic and about being diagnosed with COVID-19 or its exclusion. People who have been ill are asked about the place of treatment.

The questionnaires are collected in traditional form, on the Internet and as scans of documents. Each survey was completely anonymous. The obtained statistical data will be compared with official data on new COVID-19 cases and recoveries at the same time. Official data are published by the Ministry of Health and earlier also by Sanitary and Epidemiological Stations. The main aim of the study was to determine whether ice swimming also increases resistance to SARS-CoV-2 and COVID-19.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • ice swimmers

Exclusion criteria

  • not active ice swimmers

Treatment and study plan

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.

Primary outcomes

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

    Time frame: 47 days.

    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.

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

    Time frame: 47 days.

    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.

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

    Time frame: 47 days.

    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.

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

    Time frame: 47 days.

    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.

  5. 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.

    Time frame: 47 days.

    Inference from data obtained from surveys collected among ice swimmers.

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

    Time frame: 47 days.

    Inference from data obtained from surveys collected among ice swimmers.

Secondary outcomes

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

    Time frame: 47 days.

    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.

Sponsors and collaborators

Lead sponsor

Wroclaw Medical University

Other

Registry information

Official study title

Influence of Ice Swimming on Hardening Against SARS-CoV-2 and Influence of AB0 Rh Blood Type on Viral Resistance in Polish Ice Swimmers.

Acronym: ICE

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Mar 26, 2021
Registry last updated
Apr 9, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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