Table 4– Predictive capacity for mortality of the 12 initial eligible variables for inclusion in the score

	OR (95% CI)	p-value
Age years	1.08 (1.04–1.11)	0.001
Dyspnoea mMRC score	2.42 (1.23–4.8)	0.01
Post-bronchodilator FEV₁	0.96 (0.94–0.97)	0.0001
Lobes affected	1.41 (1.07–1.86)	0.016
Chronic colonisation by *Pseudomonas aeruginosa*	1.95 (1.01–3.76)	0.045
Body mass index kg·m⁻²	0.95 (0.87–1.05)	0.30
Sex	1.64 (0.82–3.25)	0.16
Isolation of fungi	1.22 (0.52–2.86)	0.65
Isolation of atypical mycobacteria	1.9 (0.42–8.72)	0.41
Purulence of sputum	0.8 (0.5–1.15)	0.21
Hospitalisations in previous year	1.18 (0.95–1.45)	0.14
Respiratory insufficiency	1.91 (0.77–4.8)	0.16

Bold indicates statistical significance. mMRC: modified Medical Research Council; FEV₁: forced expiratory volume in 1 s.