Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Mortality
[70] Systematic review	10,013 people with COPD 11 RCTs in this analysis	All-cause mortality 1 month to >12 months 240/5292 (4.5%) with corticosteroid plus long-acting beta2 agonist (LABA) 261/4721 (5.5%) with LABA	RR 0.90 95% CI 0.76 to 1.06 P value not reported; reported as not significant		Not significant