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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Lancet Respir Med. 2016 Nov 16;4(12):969–979. doi: 10.1016/S2213-2600(16)30320-4

Table 4.

Correlation of the BACI with clinical scores and severity indices

Patient characteristics (n=986) Spearman’s Rho P value
BSI 0.23 <0.0001
FACED 0.24 <0.0001
Age 0.20 <0.0001
Male gender 0.20 <0.0001
Smoking history 0.33 <0.0001
Reiff radiological score 0.08 0.008
MRC dyspnoea score 0.31 <0.0001
LTOT 0.23 <0.0001
Prior exacerbations 0.12 0.0002
Prior hospitalisations 0.13 <0.0001
FEV1 % -0.26 <0.0001
Pseudomonas colonisation 0.078 0.01
Exacerbations on follow-up 0.11 0.0006
Hospitalisations on follow-up 0.22 <0.0001

Definition of abbreviations: BSI: Bronchiectasis Severity Index, FACED: Acronym for a 5-component disease severity score; MRC: Medical Research Council, LTOT: long term oxygen therapy, FEV1%: Forced expiratory volume in 1 second % predicted.