Table 2. Clinical Outcomes and Covid-19 Severity among Hospitalized Case Patients, According to Vaccination Status.*.
Variable | Unvaccinated (N=427) |
Fully or Partially Vaccinated (N=18) |
---|---|---|
Severe Covid-19 — no. (%)† | 194 (45) | 2 (11) |
ICU admission — no. (%) | 178 (42) | 2 (11) |
Life-threatening illness with life support — no. (%)‡ | 126 (30) | 1 (6) |
Invasive mechanical ventilation — no./total no. (%) | 48/425 (11) | 1/18 (6) |
Noninvasive mechanical ventilation (BiPAP or CPAP) — no./total no. (%) | 90/423 (21) | 1/18 (6) |
Vasoactive infusions — no./total no. (%) | 38/426 (9) | 1/18 (6) |
Extracorporeal membrane oxygenation — no./total no. (%) | 13/425 (3) | 0 |
Patients with discharge data — no./total no. (%) | 407/427 (95) | 18/18 (100) |
Median length of hospital stay (IQR)§ | 5 (2–7) | 4 (1–5) |
Death before discharge — no./total no. (%) | 7/407 (2) | 0 |
BiPAP denotes bilevel positive airway pressure, CPAP continuous positive airway pressure, and IQR interquartile range.
Severe Covid-19 illness was defined as admission to the intensive care unit (ICU) or life-threatening illness.
Life-threatening Covid-19 was defined as illness leading to invasive or noninvasive mechanical ventilation, the use of vasopressors or extracorporeal membrane oxygenation, or illness resulting in death.
Data regarding the length of the hospital stay were not available for 28 unvaccinated patients.