%0 Journal Article %K Adult %K Delivery of Health Care %K Disease Progression %K Humans %K Incidence %K *Pulmonary Disease, Chronic Obstructive %K Severity of Illness Index %K United Kingdom/epidemiology %K Copd %K exacerbations of COPD %B Int J Chron Obstruct Pulmon Dis %D 2022 %G eng %M 35264849 %P 427-437 %R 10.2147/copd.s346591 %T Frequency and Severity of Exacerbations of COPD Associated with Future Risk of Exacerbations and Mortality: A UK Routine Health Care Data Study %V 17 %2 PMC8901192 %7 2022/03/11 %@ 1176-9106 (Print)1176-9106