Table 1 In- and exclusion criteria

Inclusion criteria

First contact person of an intensive care unit (ICU) patient with the following inclusion criteria:

Pre-COVID-19

First COVID-19 wave

Second COVID-19 wave

Age patient

 ≥ 18 years

 ≥ 18 years

 ≥ 18 years

Period of ICU stay

December 1, 2019 – February 1, 2020

March 15 – May 15 2020

October 1, 2020 – January 1, 2021

Length of ICU stay

 ≥ 3 days

 ≥ 3 days

 ≥ 3 days

Diagnosis

N/A

Confirmed COVID-19 infection

Confirmed COVID-19 infection

Other criteria

Invasive mechanical ventilation ≥ 3 days

N/A

N/A

Exclusion criteria

First contact person has insufficient proficiency of the Dutch language