Table 1.

Patient State (PS) classification for patients admitted to the emergency department

PS class	Description
PS1	Patient with moderate treatment, discharged from emergency department.
PS2	Patient with major treatment, discharged from emergency department.
PS3	Patient with moderate treatment, hospitalised after emergency department stay.
PS4	Patient with major treatment, hospitalised after emergency department stay.
PS5	Patients requiring immediate treatment, not elsewhere classified.
PS6	Patients requiring immediate intensive care/resuscitation.
PS7	Died in emergency department.