Table 1

Prognostic scores and their components

	Measured indices											Study population and primary outcome				AUROC for death or readmission48
	Age	BMI	Comorbidity*	Dyspnoea†	Airflow obstruction‡	Exacerbations§	Severe exacerbations¶	Smoking status	Length of stay	Acuity**	ED visits last 6 months	COPD specific?	Stable-state or exacerbating at inclusion	Outpatients or admitted patients	Primary outcome	AUROC for death or readmission48
ADO5	√			√	√							√	Both	Both	Death	0.58
BODEX6		√		√	√		√					√	Stable	Outpatients	Death	0.61
CODEX4††	√		√	√	√		√					√	AECOPD	Mostly admitted	Death or readmission	0.67
DOSE7				√	√	√		√				√	Unclear	Outpatients	Health status‡‡	0.64
LACE8			√						√	√	√	X	N/A	Admitted	Death or readmission	0.68§§

*Charlson Comorbidity Index.
†mMRC dyspnoea score.
‡FEV₁ %predicted.
§Patient reported AECOPD in previous year.
¶AECOPD in previous year requiring admission or ED attendance.
**Elective or emergency admission.
††Uses age-adjusted Charlson Comorbidity Index.
‡‡Measured by the clinical COPD questionnaire.
§§30-day death or readmission.
AECOPD, acute exacerbation of COPD; AUROC, area under the receiver operating characteristic; BMI, body mass index; ED, emergency department; mMRC, modified Medical Research Council; n/a, not available.