Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Death or hospital admission
[24] Systematic review	1197 people 14 RCTs in this analysis	Rate of events (including hospital admission causing temporary or permanent withdrawal from exercise) mean 5.9 months' follow-up 30/622 (5%) with exercise 34/575 (6%) with control	OR 0.83 95% CI 0.50 to 1.39 Follow-up among RCTs ranged from 4 weeks to 192 weeks; about half the RCTs included in the review had a follow-up of 3 months or less		Not significant
[25] Systematic review	659 people 8 RCTs in this analysis	Rate of all-cause hospital admissions up to 12 months' follow-up 47/329 (14%) with exercise 61/330 (18%) with control	RR 0.79 95% CI 0.58 to 1.07 P = 0.13 Follow-up among RCTs ranged from 6 months to 12 months		Not significant
[25] Systematic review	2658 people 4 RCTs in this analysis	Rate of all-cause hospital admissions >12 months' follow-up 764/1319 (58%) with exercise 810/1339 (60%) with control	RR 0.96 95% CI 0.90 to 1.02 P = 0.15 Follow-up among RCTs ranged from 26 months to 75 months		Not significant
[25] Systematic review	569 people 7 RCTs in this analysis	Rate of hospital admissions for heart failure up to 30 months' follow-up 44/286 (15%) with exercise 61/283 (22%) with control	RR 0.72 95% CI 0.52 to 0.99 P = 0.042	Small effect size	exercise