Fig. 3From: Oxygen desaturation during the 6-min walk test as a risk for osteoporosis in non-cystic fibrosis bronchiectasisCorrelation between bone mineral density (T score) and the ΔSpO2 during 6MWT (a), severe exacerbations (b). Abbreviations: 6MWT six minute walk test, ΔSpO2 fall of oxygen saturation by pulse oximetry defined as 100 X (pre-6MWT-lowest-6MWT)/pre-6MWTBack to article page