Table 1 Chinese version of the FOUR SCORE

Eye response

Brainstem reflexes

4: eyelids open or opened, tracking, or blinking to command

4: pupil and corneal reflexes present

3: eyelids open but not tracking

3: one pupil wide and fixed

2: eyelids closed but open to loud voice

2: pupil or corneal reflexes absent

1: eyelids closed but open to pain

1: pupil and corneal reflexes absent

0: eyelids remain closed with pain

0: absent pupil, corneal, and cough reflex

Motor response

Respiration

4: thumbs-up, fist, or peace sign

4: not intubated, regular breathing pattern

3: localizing to pain

3: not intubated, Cheyne–Stokes breathing pattern

2: flexion of the upper limbs response to pain

2: not intubated, irregular breathing

1: extension of the upper limbs response to pain

1: breathes above ventilator rate

0: no response to pain or generalized myoclonus status

0: breathes at ventilator rate or apnea