A heart failure phenotype stratified model for predicting 1-year mortality in patients admitted with acute heart failure: results from an individual participant data meta-analysis of four prospective European cohorts

Table 4 Evaluation of heterogeneity of AUC across four studies (internal-external cross-validation)

Study(k)	HFrEF		HFmrEF		HFpEF
Study(k)	AUC_(k)*	AUC_k^†	AUC_(k)	AUC_k	AUC_(k)	AUC_k
BIOSTAT-index	0.80	0.76	0.73	0.77	0.76	0.70
BIOSTAT-validation	0.77	0.84	0.79	0.69	0.76	0.75
TRIUMPH	0.78	0.80	0.75	0.80	0.75	0.68
COACH	0.79	0.76	0.75	0.74	0.73	0.78
Total^‡	0.79	0.79	0.76	0.74	0.75	0.74

ISSN: 1741-7015