During 2017–2018, 37.2% of ED visits for influenza and pneumonia by adults aged ≥18 years resulted in a hospital admission. The percentage increased with age from 14.4% for adults aged 18–54 years to 46.9% for adults aged 55–74 years and 69.7% for adults aged ≥75 years.
Source: National Center for Health Statistics. National Hospital Ambulatory Medical Care Survey, 2017–2018. https://www.cdc.gov/nchs/ahcd/ ahcd_questionnaires.htm.
Footnotes
With 95% confidence intervals shown with error bars.
Influenza and pneumonia defined as any ED visit with International Classification of Diseases, Tenth Revision Clinical Modification (ICD-10-CM) codes J09–J18.
Based on a sample of visits to EDs in noninstitutional general and short-stay hospitals, exclusive of federal, military, and Veterans Administration hospitals, located in the 50 U.S. states and the District of Columbia.