Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Admission to hospital
[85] Systematic review	2430 people with heart failure 2 RCTs in this analysis	Heart failure events including hospital admission with cardiac resynchronisation therapy (CRT) plus implantable cardiac defibrillator (ICD) with ICD alone Absolute results not reported	OR 0.57 95% CI 0.46 to 0.70	Small effect size	CRT plus ICD