BACKGROUND: @entity497 ( @entity497 ) severity scores can identify @entity1 at low risk for mortality who may be suitable for ambulatory care. Here, we follow the clinical course of hospitalized @entity1 with @entity497 due to 2009 H1N1 influenza. OBJECTIVE: To evaluate the role of @entity497 severity scores as predictors of mortality. METHODS: This was a secondary data analysis of @entity1 hospitalized with @entity497 due to 2009 H1N1 influenza confirmed by reverse transcriptase polymerase chain reaction enrolled in the CAPO (Community-Acquired @entity55 Organization) international cohort study. @entity497 severity scores PSI ( @entity55 Severity Index), CURB-65 ( @entity911 , @entity1133 , respiratory rate, blood pressure, age >=  65 years) and CRB-65 ( @entity911 , respiratory rate, blood pressure, age >=  65 years) were calculated. Actual and predicted mortality rates were compared. A total of 37 predictor variables were evaluated to define those associated with mortality. RESULTS: Data from 250 @entity1 with @entity497 due to 2009 H1N1 influenza were analyzed. @entity1 with low predicted mortality rates (0-1.5%) had actual mortality rates ranging from 2.6% to 17.5%. @entity28 and wheezing were the only novel variables associated with mortality. CONCLUSIONS: The decision to hospitalize a @entity1 with @entity497 due to 2009 H1N1 influenza should not be based on current @entity497 severity scores, as they underestimate mortality rates in a significant number of @entity1 . @entity1 with @entity28 or wheezing should be considered at an increased risk for mortality.

Predicting mortality in hospitalized @entity1 with 2009 H1N1 influenza XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity1133 :: ('MESH:D014508', 'Chemical') :: ['urea'] @entity55 :: ('MESH:D011014', 'Disease') :: ['Pneumonia'] @entity28 :: ('MESH:D009765', 'Disease') :: ['Obesity', 'obesity'] @entity497 :: ('MESH:D003147', 'Disease') :: ['Community-acquired pneumonia', 'CAP'] @entity911 :: ('MESH:D003221', 'Disease') :: ['confusion']
@entity55 :: (MESH:D011014,Disease) :: ['pneumonia']
