Table 2.

Schedule of intervention delivery and data collection

Assessment points	1	2	3	4	5	6
Assessment point window	Cardiac arrest event	2 days (± 3 days) after assessment 1	Regular in-hospital reviews	30-day (± 2 days) after assessment 1	Hospital discharge†	Six-months (± 1 m) after assessment 1
Eligibility assessment	✓
Intervention	✓
Cardiac arrest event data	✓	✓
Patient demographics/past medical history		✓
Defibrillator record download		✓
Post-cardiac arrest treatment		✓	✓	✓
Length of hospital stay					✓
Survival status	✓	✓	✓	✓	✓	✓
Quality of life (SF-12 and EQ-5D-5 L)					✓	✓
Assessment of blinding					✓	✓
Consent to continue‡		✓	✓	✓	✓
Adverse events	✓	✓	✓	✓	✓

† − May occur before visit four; ‡ − Seek at first appropriate opportunity

SF-12- 12-item short form survey; EQ-5D-5 L- EuroQOL- 5 dimensions- 5 levels