image: Figure 1. Forest plot of frailty category on respiratory exacerbations. Abbreviations: OR: odds ratio of frailty/prefrailty on severe exacerbations; IRR: incident rate...
image: Figure 1. Forest plot of frailty category on respiratory exacerbations. Abbreviations: OR: odds ratio of frailty/prefrailty on severe exacerbations; IRR: incident rate...