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Table 1 Inclusion and exclusion criteria for the Military COVID-19 Observational Outcome in a Viral Infectious Disease (M-COVID) study

From: Cardiopulmonary, Functional, Cognitive and Mental Health Outcomes Post-COVID-19, Across the Range of Severity of Acute Illness, in a Physically Active, Working-Age Population

Inclusion criteria

Exclusion criteria

Hospitalised

Community-symptomatic

Community-recovered

Comparison

All groups

Currently serving UK Military Personnel at time of recruitment

Currently serving UK Military Personnel at time of recruitment

Currently serving UK Military Personnel at time of recruitment

Currently serving UK Military Personnel at time of recruitment

Unwilling or unable to give informed consent

Previous COVID-19 infection—requiring hospital admission

Previous COVID-19 infection—self-limiting mild/moderate acute illness, not requiring hospital admission

Previous COVID-19 infection- self-limiting mild/moderate acute illness, not requiring hospital admission

No previous clinical suspicion of acute COVID-19 infection

Past medical history of cardiac or pulmonary disease (excluding mild asthma and controlled hypertension)

Positive COVID-19 antigen PCR test at time of acute illness, or clinically adjudicated COVID-19

Positive COVID-19 antigen PCR test at time of acute illness, or clinically adjudicated COVID-19

Positive COVID-19 antigen PCR test at time of acute illness, or clinically adjudicated COVID-19

Negative COVID-19 antibody test at recruitment to study

Active acute infection at the time of recruitment as determined by clinical assessment

Negative for COVID-19 antigen PCR test at recruitment to study

Negative for COVID-19 antigen PCR test at recruitment to study

Negative for COVID-19 antigen PCR test at recruitment to study

Negative for COVID-19 antigen PCR test at recruitment to study

Unable to meet the criteria of the MRI safety questionnaire

 > 4 weeks since resolution of fever/acute illness

 > 4 weeks since resolution of fever/acute illness

 > 4 weeks since resolution of fever/acute illness

–

Pregnant at the time of recruitment to the study

–

Ongoing post-acute symptoms/exercise intolerance

No ongoing post-acute symptoms/exercise intolerance

–

Unable, or unwilling, to complete any research investigations

  1. Abbreviations: COVID-19, Coronavirus disease 2019; PCR, polymerase chain reaction; MRI, magnetic resonance imaging