Influenza vaccine

What It Means
Pneumonia patients age 50 years and older, hospitalized during October, November, December, January, February or March who were screened for influenza vaccine status and were vaccinated prior to discharge, if indicated.

Why It Is Important
Influenza vaccination is indicated for people age 50 years and older because it is highly effective in preventing influenza-related pneumonia, hospitalization, and death. Vaccine coverage in the United States is sub- optimal. Screening and vaccination of inpatients is recommended, but hospitalization is an underutilized opportunity to provide vaccination to adults.

Numerator Definition
Patients discharged during October, November, December, January, February or March with pneumonia, age 50 and older, who were screened for influenza vaccine status and were vaccinated prior to discharge, if indicated.

Denominator Definition
Pneumonia patients 50 years of age and older.

Denominator Excluded Populations

  • Patients who received Comfort Measures Only
  • Patients who expired in the hospital
  • Patients who left the hospital against medical advice (AMA)
  • Patients who were discharged to hospice care
  • Patients with a secondary diagnosis of 487.0 (influenza with pneumonia)
  • Patients who were transferred to another short term general hospital for inpatient care, or who were discharged/transferred to a federal hospital
  • Patients who had no chest x-ray or CT scan that indicated abnormal findings within 24 hours prior to hospital arrival or anytime during this hospitalization
  • Patients with Cystic Fibrosis (Appendix A, Table 3.4)
  • Patients involved in clinical trials
  • Patients who have a Length of Stay >120 days

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