6MWT 6 minute walk test
BMI body mass index
BOLD Burden of Obstructive Lung Disease Initiative
CI confidence interval
COPD chronic obstructive pulmonary disease
CT computed tomography
FEV forced expiratory volume
FVC forced vital capacity
GOLD Global Initiative for Chronic Obstructive Lung Disease
GRADE Grading of Recommendations Assessment, Development and Evaluation
HRQoL health-related quality of life
ICER incremental cost effectiveness ratio
IPG interventional procedure guidance
MCID minimum clinically important difference
MD mean difference
MDT multi-disciplinary team
mMRC modified Medical Research Council
NMA network meta-analysis
NR not reported
NS not significant
OR odds ratio
QALY quality adjusted life-years
RCT randomised controlled trial
RR relative risk/risk ratio
SGRQ Saint George’s Respiratory Questionnaire
SMD standardised mean difference
WMD weighted mean difference