Data Source
We analyzed data from the Kids’ Inpatient Database (KID) to conduct a
cross sectional analysis of hospital outcomes including mortality,
length of stay and health care expenditure among pediatric CF
hospitalizations. The KID is published triennially beginning in 1997 and
is a nationally representative sample of pediatric hospitalizations from
the Healthcare Cost and Utilization Project (HCUP) sponsored by the
Agency for Healthcare Research and Quality. KID is the largest,
all-payer hospitalization database in the United States and contains
data from 22–46 states (depending on the year), and two to three
million discharges.
The database contains 25 International Classification of Diseases, Ninth
Revision (ICD-9) and up to 30 ICD, Tenth Revision (ICD-10) codes per
discharge. It contains more than 75 clinical and nonclinical variables,
clinical modification diagnostic and procedure codes, hospital
characteristics, and out-comes. HCUP-KID assigns an individual-level
population weight that allows an estimation of national case rates and
trends. KID has been used in published studies of pediatric CF.