Table 1:

Baseline demographic and clinical characteristics of 117 critically ill patients with COVID-19 admitted to ICUs in Metro Vancouver, British Columbia

CharacteristicNo. (%) of patients*
Demographic characteristic
 Age, yr, median (IQR)69 (60–75)
 Sex, female38 (32.5)
 BMI, median (IQR)28 (24–33)
 Time from symptom onset to ICU admission, d, mean (± SD)8.0 (± 4.5)
 APACHE II score, median (IQR)18 (10–28)
 SOFA score at admission, median (IQR)§6 (2–11)
Enrolment site
 Quaternary or tertiary A39 (33.3)
 Quaternary or tertiary B29 (24.8)
 Quaternary or tertiary C21 (17.9)
 Quaternary or tertiary D9 (7.7)
 Community A13 (11.1)
 Community B6 (5.1)
Comorbidity
 Hypertension54 (46.2)
 Dyslipidemia43 (36.8)
 Diabetes mellitus36 (30.8)
 None31 (26.5)
 Cardiovascular disease20 (17.1)
 Current or former tobacco smoker16 (13.7)
 Chronic kidney disease15 (12.8)
 Asthma14 (12.0)
 Chronic obstructive pulmonary disease8 (6.8)
 Active malignancy7 (6.0)
 Congestive heart failure4 (3.4)
 Hemorrhagic or ischemic stroke4 (3.4)
 Chronic liver disease2 (1.7)
  • Note: APACHE = Acute Physiology and Chronic Health Evaluation, BMI = body mass index, COVID-19 = coronavirus disease 2019, ICU = intensive care unit, IQR = interquartile range, SD = standard deviation, SOFA = Sequential Organ Failure Assessment.

  • * Unless stated otherwise.

  • BMI was recorded only for the 74 patients who underwent mechanical ventilation. Of these, 55 (74.3%) had data available.

  • The APACHE II score is a measure of illness acuity with possible scores ranging from 0 to 71. Higher scores indicate more severe illness and are associated with greater mortality. APACHE II scores were available for 95 (81.2%) patients.

  • § The SOFA score is a measure of illness acuity with possible scores ranging from 0 to 24. Higher scores indicate more severe illness and are associated with greater mortality. SOFA scores on day 1 of ICU admission were available for 115 (98.3%) patients.