Covid19NCT05063747
Long Term Outcome in ICU Treated COVID-19: Risk Factors for 1-year Mortality
An observational study of Covid19, run by Uppsala University at 1 site in Sweden.
Trial summary
Mortality within one year after intensive care unit (ICU) admission with Coronavirus disease 2019 (COVID-19) will be assessed. Risk and risk factors for one year mortality in ICU patients will be compared to patients admitted to hospital with COVID-19 and general population controls. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Covid19
- How many people
- 13,537 participants
- Where
- 1 siteSweden
- Study dates
- 15 Oct 2021to 15 Nov 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The study population consists of all patients a fulfilling the eligibility criteria.
Who may be able to join
- Admitted to a Swedish ICU and registered in the Swedish intensive care registry with the ICD 10 diagnosis U07.1 before 1 July 2020. ICU-cohort.
- or randomly selected from all patients admitted to hospital but not ICU with the ICD 10 diagnosis U07.1 in the national patient registry, matched on age, legal gender and region (four per ICU patient) before 1 July 2020. Hospital cohort.
- or randomly selected from the general population (and not included in the ICU or hospital admitted cohorts), matched on age, legal gender and region (four per ICU patient)
Who cannot join
- Missing a Swedish personal identification number
Trial locations and contacts
1 site in 1 country.
About this study
Mortality within one year after intensive care unit (ICU) admission with Coronavirus disease 2019 (COVID-19) will be assessed. Risk and risk factors for one year mortality in ICU patients will be compared to patients admitted to hospital with COVID-19 and general population controls.
The ICU population comprises all Swedish ICU patients with COVID-19 with at lease one year of follow up. The hospital admitted cohort comprises four hospital admitted patients with COVID-19 per ICU patient, matched on age, legal gender and region. The general population controls are matched to the ICU patients in a one to four fashion on age, legal gender and region.
ICU patients are identified in the Swedish intensive care registry. The hospital admitted patients are identified in the national patient registry and the population controls are identified in the population registry. Data on socioeconomics and income are provided by the Statistics Sweden. Data on comorbidity, medications and death are provided from the National board of health and welfare.
- Conditions
- Covid19
- Being tested
- No intervention.
- Keywords
- Long term outcome, Mortality, COVID-19, Risk factors, Critical care
- Medical subject headings
- COVID-19
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No intervention.Other
Observational study. No intervention.
| Study group | Role | What they receive |
|---|---|---|
| COVID-19 ICU cohort | All patients admitted to a Swedish ICU with COVID-19 with at least one year of follow up. COVID-19 is defined by the International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) diagnosis U07.1 in the nationwide Swedish intensive care registry. Receives: Other: No intervention. | |
| COVID-19 hospital admission control cohort | Four random control patients per ICU patient matched on age legal gender and region. Controls selected from all patients admitted to a Swedish hospital with COVID-19 with at least one year of follow up not including patients in the COVID-19 ICU cohort. COVID-19 is defined by the ICD-10 diagnosis U07.1 in the nationwide Swedish national patient registry. Receives: Other: No intervention. | |
| General population control cohort | Four general population controls per ICU patient, matched on age, legal gender and region drawn from the total population register of Sweden. ICU and hospital admitted COVID-19 patients are not included. Receives: Other: No intervention. |
What is being measured
The primary outcome is the main question the study is designed to answer.
What factors have significant odds ratios in a logistic model of the risk of one year mortality?
Variables in a binary logistic model on mortality one year after ICU admission: age, legal gender, highest education, immigrant background, income previous year, martial status, ischemic heart disease, chronic renal failure, stroke, type 2 diabetes melitus, chronic obstructive pulmonary disease, asthma, hypertension, malignacy, treatment with renin angiotensin angiotensinogen inhibitors, treatment with statins
Measured: One year
Is cohort an independent risk factor in a logistic model of one year mortality?
Binary logistic model, interaction with a variable denoting cohort (ICU, Hospital or General population). A significant interaction denotes a differential effect of a risk factor between cohorts.
Variables in a binary logistic model on mortality one year after ICU admission: age, legal gender, highest education, immigrant background, income previous year, martial status, ischemic heart disease, chronic renal failure, stroke, type 2 diabetes melitus, chronic obstructive pulmonary disease, asthma, hypertension, malignancy, treatment with renin-angiotensin-angiotensinogen inhibitors and treatment with statins.
Measured: One year
Secondary outcomes (1)
Does acute disease severity, hospital length of stay or ICU length of stay affect the significance of variables when added to the risk model in Outcome 1 for the ICU cohort?
Addition of Simplified Acute Physiology Score 3, hospital length of stay and ICU length of stay is added to the logistic model in Outcome 1.
Measured: One year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Oct 2021
- Study start15 Oct 2021
- Primary completion15 Nov 2021
- Study completion15 Nov 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Covid19Studies of the same condition, open and under way.
- More trials run by Uppsala UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Retrospective
- Enrolment
- 13,537 participants (actual)
Sponsor and investigators
- Lead sponsor
- Uppsala University
- Sponsor type
- University, hospital or other
- Collaborators
- Dalarna County Council, Sweden
- Responsible party
- Sponsor
- Investigators
- Miklos Lipcsey, Professor, Principal investigator, Uppsala University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05063747
- Sponsor's protocol ID
- U1111-1269-5925
- Status last verified
- May 2022
- First submitted
- 29 Sep 2021
- Last updated
- 24 May 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: IPD sharing is not allowed under the ethical review approval.
Study at a glance
From the registry record, last updated by the sponsor on 24 May 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Long Term Outcome in ICU Treated COVID-19: Risk Factors for 1-year Mortality
- ClinicalTrials.gov ID
- NCT05063747
- Acronym / sponsor ID
- U1111-1269-5925
- Conditions
- Covid19
- Keywords
- Long term outcome, Mortality, COVID-19, Risk factors, Critical care
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 13,537 participants (actual)
- Lead sponsor
- Uppsala UniversityUniversity, hospital or other
- Collaborators
- Dalarna County Council, Sweden
- Study start
- 15 Oct 2021 (actual)
- Primary completion
- 15 Nov 2021 (actual)
- Study completion
- 15 Nov 2021 (actual)
- First posted
- 1 Oct 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Mortality within one year after intensive care unit (ICU) admission with Coronavirus disease 2019 (COVID-19) will be assessed. Risk and risk factors for one year mortality in ICU patients will be compared to patients admitted to hospital with COVID-19 and general population controls.
The ICU population comprises all Swedish ICU patients with COVID-19 with at lease one year of follow up. The hospital admitted cohort comprises four hospital admitted patients with COVID-19 per ICU patient, matched on age, legal gender and region. The general population controls are matched to the ICU patients in a one to four fashion on age, legal gender and region.
ICU patients are identified in the Swedish intensive care registry. The hospital admitted patients are identified in the national patient registry and the population controls are identified in the population registry. Data on socioeconomics and income are provided by the Statistics Sweden. Data on comorbidity, medications and death are provided from the National board of health and welfare.
Study design
- Observational model
- Case-control
- Time perspective
- Retrospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| COVID-19 ICU cohort | – | Other: No intervention.All patients admitted to a Swedish ICU with COVID-19 with at least one year of follow up. COVID-19 is defined by the International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) diagnosis U07.1 in the nationwide Swedish intensive care registry. |
| COVID-19 hospital admission control cohort | – | Other: No intervention.Four random control patients per ICU patient matched on age legal gender and region. Controls selected from all patients admitted to a Swedish hospital with COVID-19 with at least one year of follow up not including patients in the COVID-19 ICU cohort. COVID-19 is defined by the ICD-10 diagnosis U07.1 in the nationwide Swedish national patient registry. |
| General population control cohort | – | Other: No intervention.Four general population controls per ICU patient, matched on age, legal gender and region drawn from the total population register of Sweden. ICU and hospital admitted COVID-19 patients are not included. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The study population consists of all patients a fulfilling the eligibility criteria.
Key inclusion criteria (3 listed)
- Admitted to a Swedish ICU and registered in the Swedish intensive care registry with the ICD 10 diagnosis U07.1 before 1 July 2020. ICU-cohort.
- or randomly selected from all patients admitted to hospital but not ICU with the ICD 10 diagnosis U07.1 in the national patient registry, matched on age, legal gender and region (four per ICU patient) before 1 July 2020. Hospital cohort.
- or randomly selected from the general population (and not included in the ICU or hospital admitted cohorts), matched on age, legal gender and region (four per ICU patient)
Key exclusion criteria (1 listed)
- Missing a Swedish personal identification number
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No intervention.Observational study. No intervention. | Other | COVID-19 ICU cohort, COVID-19 hospital admission control cohort, General population control cohort |
Primary outcome
What factors have significant odds ratios in a logistic model of the risk of one year mortality?
Time frame: One year
Variables in a binary logistic model on mortality one year after ICU admission: age, legal gender, highest education, immigrant background, income previous year, martial status, ischemic heart disease, chronic renal failure, stroke, type 2 diabetes melitus, chronic obstructive pulmonary disease, asthma, hypertension, malignacy, treatment with renin angiotensin angiotensinogen inhibitors, treatment with statins
Is cohort an independent risk factor in a logistic model of one year mortality?
Time frame: One year
Binary logistic model, interaction with a variable denoting cohort (ICU, Hospital or General population). A significant interaction denotes a differential effect of a risk factor between cohorts. Variables in a binary logistic model on mortality one year after ICU admission: age, legal gender, highest education, immigrant background, income previous year, martial status, ischemic heart disease, chronic renal failure, stroke, type 2 diabetes melitus, chronic obstructive pulmonary disease, asthma, hypertension, malignancy, treatment with renin-angiotensin-angiotensinogen inhibitors and treatment with statins.
1 secondary outcome
Does acute disease severity, hospital length of stay or ICU length of stay affect the significance of variables when added to the risk model in Outcome 1 for the ICU cohort?
Time frame: One year
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 May 2022.
- Individual participant dataSharing planned: No. IPD sharing is not allowed under the ethical review approval.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Miklos Lipcsey, Professor principal investigator
Uppsala University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Covid19, run by Uppsala University at 1 site in Sweden.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 May 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
What factors have significant odds ratios in a logistic model of the risk of one year mortality? (time frame: One year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 May 2022.