Forest plots of pairwise meta-analysis concerning the safety of triple ICS/LABA/LAMA FDCs vs. dual FDCs on the risk of total SAEs (A), CV SAEs (B), pneumonia (C), and all-cause mortality (D). § Treatment comparison introducing substantial heterogeneity in the pairwise meta-analysis. BDP: beclomethasone dipropionate; BID: bis in die, twice daily; BUD: budesonide; CV: cardiovascular; FDC: fixed-dose combination; FF: fluticasone furoate; FOR: formoterol fumarate; GLY: glycopyrronium bromide or glycopyrrolate; ICS: inhaled corticosteroid; LABA: long-acting β2-adrenoceptor agonist; LAMA: long-acting muscarinic antagonist; QD: quaque die, once daily; RR: relative risk; SAE: serious adverse event; UMEC: umeclidinium bromide; VI: vilanterol.