Figure 2.

ROC curves for various mortality prediction rules: cluster classification, GOLD_ABCD, GOLD₂₀₁₇ and BODE.

Notes: GOLD_ABCD, GOLD₂₀₁₇ and cluster classification were included in the original four categories, and BODE score was categorized into four categories as proposed by Celli et al.³ AUC and 95% CI were included for each of the classification rules.

Abbreviations: AUC, area under the curve; BODE, body mass index, obstruction, dyspnea and exercise; ROC, receiver operating characteristic.