Table 2. Prediction of mortality for BODEx and BODEx-A3 indices.

DeLong's test, p-values less than 0.05 were considered statistically significant.

BODEx: body mass index, airflow obstruction, dyspnea, and exacerbation cut-off point 6, BODEX-A3: body mass index, airflow obstruction, dyspnea, and exacerbation cut-off point 7, established by Youden’s index, AUC: area under the curve

Predictive capacity		BODEx	BODEx-A3	p-value
1 year	AUC	0.78	0.83	0.17
	Sensitivity	62%	71%
	Specificity	80%	87%
3 years	AUC	0.67	0.77	<0.001
	Sensitivity	42%	50%
	Specificity	82%	92%