Anemia, transfusions and hospital outcomes among critically ill patients on prolonged acute mechanical ventilation: a retrospective cohort study

Marya D Zilberberg¹ , Lee S Stern² , Daniel P Wiederkehr² , John J Doyle² and Andrew F Shorr³

¹School of Public Health and Health Sciences, University of Massachusetts, North Pleasant Street, Amherst, Massachusetts 01003, USA

²Analytica International, Park Avenue South, New York, New York 10016, USA

³Division of Pulmonary and Critical Care Medicine, Washington Hospital Center, Irving Street Northwest, Washington, District of Columbia 20010, USA