Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
All-cause mortality
[24] Systematic review	1197 people 14 RCTs in this analysis	Rate of all-cause mortality mean 5.9 months' follow-up 26/622 (4%) with exercise 41/575 (7%) with control	OR 0.71 95% CI 0.37 to 1.02 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	962 people 13 RCTs in this analysis	Rate of all-cause mortality up to 12 months' follow-up 42/480 (8.8%) with exercise 41/482 (8.5%) with control	RR 1.02 95% CI 0.70 to 1.51 P = 0.90 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 mortality >12 months' follow-up 238/1319 (18%) with exercise 268/1339 (20%) with control	RR 0.88 95% CI 0.73 to 1.07 P = 0.21 Follow-up among RCTs ranged from 26 months to 75 months		Not significant