Table 3. Score to predict mortality after extracorporeal life support during active resuscitation.

Variables	1 Point	2 Points	3 Points	6 Points
Length of CPR (minutes)	< 40	40–59	60–104	≥ 105
Lactate (mmol/L)	< 8.0	8.0–13.9	14.0–17.9	≥ 18.0
pH	> 7.00	6.85–7.00	6.61–6.84	≤ 6.60

Abbreviations: CPR, cardiopulmonary resuscitation; ECLS, extracorporeal life support.

Note: If a variable was not measured prior to ECLS initiation, it was considered to be normal.