Table 1.

Characteristics of the participating ICUs.

Institutions	City	Level	ICU type	Number of beds	Number of doctors	Number of nurses
Affiliated Hospital of North Sichuan Medical College	Nanchong	Grade A level III	Integrated ICU	18	13	40
The Second People’s Hospital of Yibin	Yibin	Grade A level III	Integrated ICU	35	13	60
The First People’s Hospital of Yibin	Yibin	Grade A level III	Integrated ICU	8	9	21
Dazhou Central Hospital	Dazhou	Grade A level III	Integrated ICU	25	17	60
West China-Guang’an Hospital, Sichuan University	Guang’an	Grade A level III	Integrated ICU	23	9	42
The Second People’s Hospital of Neijiang	Neijiang	Grade A level III	Integrated ICU	19	7	28
The First People’s Hospital of Zigong	Zigong	Grade A level III	Integrated ICU	32	14	51

ICU – Intensive Care Unit.