At a glance
ClinicalIndex Comparison RecordN/ACompleted· 757,585 enrolled
Drug / intervention
Not specified
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.
Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.
The Association Between Tobacco Use and COVID-19 Infection and Adverse Outcomes in Three Nordic Countries: a Pooled Analysis
In Brief
An observational study for COVID-19 and 6 related conditions. Completed, enrolled 757,585 participants across 1 site.
Detailed Summary
This is an observational study of pooled population-based samples in three Nordic countries. Country-specific data has already been analysed in previous studies in Sweden, Finland, and Norway. The primary objective is to examine the association between tobacco use, the risk of SARS-CoV-2 infection, and adverse Outcomes using pooled population-based samples.
Study Details
Study Typeobservational
Allocation--
Masking--
Primary Purpose--
ConditionsCOVID-19, Respiratory Tract Infections, Infections, Pneumonia, Viral, Pneumonia, Virus Diseases, SARS-CoV-2 Infection
CountriesSweden
Timeline
N/ACompletedFinished
2023202420252026
Enrollment StartApr 2022
First PostedApr 2022
Primary CompletionDec 2023
TodayJul 2026
First PostedApr 11, 2022
Enrollment StartApr 1, 2022
Primary CompletionDec 31, 2023
TodayJul 2, 2026
Enrollment to primary: 1.8 yearsPosted 4.2 years ago