Table 1

Baseline characteristics, features of the acute COVID illness and symptom persistence at follow-up following hospital discharge

Subject characteristics
Age (n=384, years)59.9±16.1
Sex M:F (n=384, %)62:38
Ethnicity (n=368)British Caucasian 38.8% (n=139/368)
Other Caucasian 17.1% (n=63/368)
British Asian 6.5% (n=24/368)
Other Asian 10.3% (n=38/368)
Black British 6.8% (n=25/368)
Other black 7.6% (n=28/368)
Other ethnicity 13.9% (n=51/368)
ComorbiditiesHypertension 41.9% (n=155/370)
Diabetes mellitus 27.2% (n=101/371)
Asthma and/or COPD 17.5% (n=65/371)
Chronic kidney disease 11.0% (n=41/372)
Ischaemic heart disease 9.7% (n=36/371)
Smoking: current/ever/never
(n=373, %)
2.7/23.3/60.9
Covid illness
Duration of symptoms prior to admission (n=372, days)7 (4–10)
Level of care (n=367)Oxygen alone: 59.1% (n=217)
ICU: 14.5% (n=54)
Intubation: 7.1% (n=47)
Length of stay (n=384, days)6.5 (4–10.75)
Clinical Frailty Score on Admission (n=384)2 (2–3.75)
Symptom persistence* (n=276)
Breathlessness
Oxygen alone/CPAP/IV (%)
54.8/63.3/57.7
Cough
Oxygen alone/CPAP/IV (%)
32.2/36.7/46.2
Fatigue
Oxygen alone/CPAP/IV (%)
67.3/73.3/76.9
Poor sleep quality
Oxygen alone/CPAP/IV (%)
61.1/93.3/76.9
  • Data reported as mean (±SD), median (IQR) or % as appropriate.

  • *Persistence defined as symptom score ≥1.

  • IV, invasive ventilation.