Table 1 Inclusion criteria

Population

Adult > 15 years of age with acute respiratory failure, dyspnea, and hypoxia who were admitted in the ED or ICU

Index tests

BNP and NT-pro BNP

Reference test

Final diagnosis made by experts, such as cardiologists and emergency physicians

Outcomes

True and false positives, true and false negatives

Study designs

All prospective, retrospective, or randomized controlled trials except for case-control studies and case series.

Language

No limits

Publication date

No limits

Publication status

Including unpublished studies